金屬精密拉伸五金件模具銘豐慶五金制品供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="對前工序拉伸產(chǎn)品的凸緣部進行角形再拉伸加工，此種加工要求材料具有良好的塑性，拉伸計算系數(shù)拉伸系數(shù)非常重要，一個拉伸件需要分幾步拉伸才能保證不出現(xiàn)開裂，金屬精密拉伸五金件模具、起皺等問題都需要用拉伸系數(shù)公式進行計算，金屬精密拉伸五金件模具。是"><meta name="keywords" content="金屬精密拉伸五金件模具,精密拉伸五金件"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://www.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u id="qgqbi"></u><noframes id="qgqbi"></noframes><menu id="qgqbi"></menu><blockquote id="qgqbi"></blockquote><track id="qgqbi"><label id="qgqbi"></label></track><tbody id="qgqbi"></tbody><legend id="qgqbi"></legend><th id="qgqbi"><button id="qgqbi"></button></th><listing id="qgqbi"><rt id="qgqbi"></rt></listing><sup id="qgqbi"><dd id="qgqbi"><tbody id="qgqbi"></tbody></dd></sup><menu id="qgqbi"><xmp id="qgqbi"></xmp></menu><fieldset id="qgqbi"><acronym id="qgqbi"></acronym></fieldset><wbr id="qgqbi"><mark id="qgqbi"><strong id="qgqbi"></strong></mark></wbr><tbody id="qgqbi"><small id="qgqbi"></small></tbody><label id="qgqbi"><tfoot id="qgqbi"></tfoot></label><div id="qgqbi"><th id="qgqbi"><object id="qgqbi"></object></th></div><listing id="qgqbi"></listing><source id="qgqbi"><ins id="qgqbi"></ins></source><noframes id="qgqbi"></noframes><noscript id="qgqbi"><strike id="qgqbi"><tt id="qgqbi"></tt></strike></noscript><strike id="qgqbi"><rp id="qgqbi"></rp></strike><dl id="qgqbi"></dl><th id="qgqbi"></th><acronym id="qgqbi"></acronym><center id="qgqbi"><input id="qgqbi"><div id="qgqbi"><th id="qgqbi"></th></div></input></center><label id="qgqbi"></label><tr id="qgqbi"><label id="qgqbi"><center id="qgqbi"></center></label></tr><menuitem id="qgqbi"><em id="qgqbi"><legend id="qgqbi"></legend></em></menuitem><pre id="qgqbi"></pre><fieldset id="qgqbi"><address id="qgqbi"><abbr id="qgqbi"><dl id="qgqbi"></dl></abbr></address></fieldset><sup id="qgqbi"><form id="qgqbi"></form></sup><form id="qgqbi"></form> <form id="qgqbi"></form><center id="qgqbi"><rp id="qgqbi"></rp></center><code id="qgqbi"></code><option id="qgqbi"><i id="qgqbi"><tr id="qgqbi"></tr></i></option><address id="qgqbi"></address><pre id="qgqbi"></pre><wbr id="qgqbi"></wbr><dl id="qgqbi"><delect id="qgqbi"><bdo id="qgqbi"></bdo></delect></dl><table id="qgqbi"><p id="qgqbi"></p></table><label id="qgqbi"><xmp id="qgqbi"><noscript id="qgqbi"><dl id="qgqbi"></dl></noscript></xmp></label><cite id="qgqbi"></cite><acronym id="qgqbi"><object id="qgqbi"><big id="qgqbi"></big></object></acronym><rp id="qgqbi"></rp><tt id="qgqbi"></tt><output id="qgqbi"></output><table id="qgqbi"><p id="qgqbi"><ruby id="qgqbi"></ruby></p></table><tt id="qgqbi"><tbody id="qgqbi"><acronym id="qgqbi"><b id="qgqbi"></b></acronym></tbody></tt><u id="qgqbi"></u><bdo id="qgqbi"><tr id="qgqbi"><dfn id="qgqbi"></dfn></tr></bdo><strike id="qgqbi"><font id="qgqbi"></font></strike><s id="qgqbi"></s><acronym id="qgqbi"><samp id="qgqbi"><code id="qgqbi"><pre id="qgqbi"></pre></code></samp></acronym><cite id="qgqbi"></cite><form id="qgqbi"><dl id="qgqbi"><pre id="qgqbi"><label id="qgqbi"></label></pre></dl></form><center id="qgqbi"><rp id="qgqbi"></rp></center><font id="qgqbi"></font><menu id="qgqbi"></menu><small id="qgqbi"><strong id="qgqbi"><sup id="qgqbi"><form id="qgqbi"></form></sup></strong></small><label id="qgqbi"><tfoot id="qgqbi"><em id="qgqbi"></em></tfoot></label><optgroup id="qgqbi"><fieldset id="qgqbi"><thead id="qgqbi"><strong id="qgqbi"></strong></thead></fieldset></optgroup><label id="qgqbi"></label><meter id="qgqbi"><noframes id="qgqbi"><i id="qgqbi"><ins id="qgqbi"></ins></i></noframes></meter><kbd id="qgqbi"></kbd><b id="qgqbi"></b><dl id="qgqbi"><delect id="qgqbi"><th id="qgqbi"><span id="qgqbi"></span></th></delect></dl><font id="qgqbi"></font><small id="qgqbi"></small><mark id="qgqbi"></mark><del id="qgqbi"><dfn id="qgqbi"><source id="qgqbi"><tr id="qgqbi"></tr></source></dfn></del><dd id="qgqbi"><ruby id="qgqbi"><menu id="qgqbi"></menu></ruby></dd><th id="qgqbi"><em id="qgqbi"></em></th><abbr id="qgqbi"></abbr><span id="qgqbi"><kbd id="qgqbi"><dfn id="qgqbi"><sub id="qgqbi"></sub></dfn></kbd></span><ins id="qgqbi"></ins><s id="qgqbi"><progress id="qgqbi"></progress></s><th id="qgqbi"></th><bdo id="qgqbi"></bdo><blockquote id="qgqbi"></blockquote><b id="qgqbi"></b><nav id="qgqbi"><div id="qgqbi"></div></nav> <meter id="qgqbi"><dfn id="qgqbi"><source id="qgqbi"><tr id="qgqbi"></tr></source></dfn></meter><tfoot id="qgqbi"></tfoot><big id="qgqbi"><pre id="qgqbi"><s id="qgqbi"></s></pre></big><small id="qgqbi"></small><table id="qgqbi"><td id="qgqbi"><sup id="qgqbi"></sup></td></table><form id="qgqbi"><tr id="qgqbi"></tr></form><tr id="qgqbi"><fieldset id="qgqbi"><thead id="qgqbi"><strong id="qgqbi"></strong></thead></fieldset></tr><ul id="qgqbi"></ul><center id="qgqbi"><optgroup id="qgqbi"><div id="qgqbi"></div></optgroup></center><rp id="qgqbi"><input id="qgqbi"><blockquote id="qgqbi"><th id="qgqbi"></th></blockquote></input></rp><tbody id="qgqbi"></tbody><form id="qgqbi"><u id="qgqbi"><fieldset id="qgqbi"></fieldset></u></form><rp id="qgqbi"></rp><b id="qgqbi"><small id="qgqbi"></small></b><dd id="qgqbi"></dd><kbd id="qgqbi"></kbd><code id="qgqbi"><pre id="qgqbi"><ul id="qgqbi"></ul></pre></code><strong id="qgqbi"></strong><cite id="qgqbi"><sub id="qgqbi"></sub></cite><object id="qgqbi"></object><dfn id="qgqbi"></dfn><pre id="qgqbi"></pre><xmp id="qgqbi"></xmp><pre id="qgqbi"></pre><sup id="qgqbi"><form id="qgqbi"><cite id="qgqbi"></cite></form></sup><tt id="qgqbi"><tbody id="qgqbi"><acronym id="qgqbi"><b id="qgqbi"></b></acronym></tbody></tt><input id="qgqbi"></input><acronym id="qgqbi"><samp id="qgqbi"><code id="qgqbi"></code></samp></acronym><nobr id="qgqbi"><pre id="qgqbi"><ul id="qgqbi"><strong id="qgqbi"></strong></ul></pre></nobr><menuitem id="qgqbi"><em id="qgqbi"><wbr id="qgqbi"><mark id="qgqbi"></mark></wbr></em></menuitem><dl id="qgqbi"></dl><rp id="qgqbi"><input id="qgqbi"><div id="qgqbi"></div></input></rp><div id="qgqbi"><button id="qgqbi"><pre id="qgqbi"><meter id="qgqbi"></meter></pre></button></div><address id="qgqbi"></address><thead id="qgqbi"><abbr id="qgqbi"><sup id="qgqbi"></sup></abbr></thead><em id="qgqbi"></em><ul id="qgqbi"><listing id="qgqbi"><wbr id="qgqbi"></wbr></listing></ul><listing id="qgqbi"></listing><wbr id="qgqbi"></wbr><thead id="qgqbi"><abbr id="qgqbi"><strike id="qgqbi"></strike></abbr></thead><menuitem id="qgqbi"></menuitem><pre id="qgqbi"></pre><pre id="qgqbi"></pre><dl id="qgqbi"><delect id="qgqbi"><bdo id="qgqbi"><span id="qgqbi"></span></bdo></delect></dl><ruby id="qgqbi"></ruby><pre id="qgqbi"><strike id="qgqbi"><tt id="qgqbi"><i id="qgqbi"></i></tt></strike></pre><fieldset id="qgqbi"><address id="qgqbi"></address></fieldset><cite id="qgqbi"><sub id="qgqbi"></sub></cite><optgroup id="qgqbi"></optgroup><fieldset id="qgqbi"><address id="qgqbi"></address></fieldset></div><div id="keany" class="pl_css_ganrao" style="display: none;"><sup id="keany"></sup><tt id="keany"></tt><pre id="keany"></pre><delect id="keany"></delect><ol id="keany"><strong id="keany"><li id="keany"></li></strong></ol><table id="keany"><track id="keany"><mark id="keany"><legend id="keany"></legend></mark></track></table><abbr id="keany"><legend id="keany"><output id="keany"><table id="keany"></table></output></legend></abbr><object id="keany"></object><rt id="keany"></rt><button id="keany"></button><strike id="keany"><font id="keany"><pre id="keany"></pre></font></strike><mark id="keany"></mark><track id="keany"></track><li id="keany"></li><big id="keany"></big><track id="keany"></track><tbody id="keany"><small id="keany"><p id="keany"></p></small></tbody><small id="keany"></small><legend id="keany"></legend><acronym id="keany"></acronym><acronym id="keany"></acronym><delect id="keany"><listing id="keany"><sup id="keany"></sup></listing></delect><video id="keany"><ol id="keany"><samp id="keany"><small id="keany"></small></samp></ol></video><style id="keany"><optgroup id="keany"></optgroup></style><optgroup id="keany"></optgroup><thead id="keany"><abbr id="keany"><strike id="keany"><font id="keany"></font></strike></abbr></thead><var id="keany"></var><small id="keany"><strong id="keany"><sup id="keany"><form id="keany"></form></sup></strong></small><ol id="keany"></ol><tbody id="keany"></tbody><tt id="keany"></tt><tt id="keany"><i id="keany"><acronym id="keany"></acronym></i></tt><object id="keany"><meter id="keany"></meter></object><font id="keany"></font><legend id="keany"><mark id="keany"></mark></legend><span id="keany"></span><sup id="keany"><font id="keany"><tbody id="keany"></tbody></font></sup><menuitem id="keany"><listing id="keany"><legend id="keany"></legend></listing></menuitem><form id="keany"><legend id="keany"><pre id="keany"></pre></legend></form><thead id="keany"><sup id="keany"><menu id="keany"><legend id="keany"></legend></menu></sup></thead><em id="keany"><style id="keany"><dl id="keany"></dl></style></em><pre id="keany"><label id="keany"><th id="keany"><button id="keany"></button></th></label></pre><center id="keany"><optgroup id="keany"><div id="keany"><button id="keany"></button></div></optgroup></center><video id="keany"><ol id="keany"><samp id="keany"><track id="keany"></track></samp></ol></video><label id="keany"></label><pre id="keany"></pre><font id="keany"></font><small id="keany"></small><legend id="keany"><dfn id="keany"><small id="keany"><p id="keany"></p></small></dfn></legend><small id="keany"><dfn id="keany"><table id="keany"><p id="keany"></p></table></dfn></small><noframes id="keany"><td id="keany"><tr id="keany"><label id="keany"></label></tr></td></noframes><i id="keany"><ins id="keany"></ins></i><optgroup id="keany"><xmp id="keany"><rp id="keany"><dl id="keany"></dl></rp></xmp></optgroup><pre id="keany"><u id="keany"><strong id="keany"><form id="keany"></form></strong></u></pre><menuitem id="keany"><listing id="keany"><wbr id="keany"></wbr></listing></menuitem><progress id="keany"></progress><xmp id="keany"></xmp><acronym id="keany"><strong id="keany"></strong></acronym><mark id="keany"></mark><sub id="keany"><optgroup id="keany"><th id="keany"><button id="keany"></button></th></optgroup></sub><ins id="keany"><label id="keany"></label></ins><track id="keany"></track><del id="keany"></del><rp id="keany"><sup id="keany"><tt id="keany"><tbody id="keany"></tbody></tt></sup></rp><form id="keany"><u id="keany"></u></form><menu id="keany"><samp id="keany"><track id="keany"><s id="keany"></s></track></samp></menu><li id="keany"><tfoot id="keany"><em id="keany"></em></tfoot></li><dl id="keany"></dl><pre id="keany"><label id="keany"></label></pre><thead id="keany"></thead><object id="keany"></object><sup id="keany"><font id="keany"><video id="keany"></video></font></sup><optgroup id="keany"></optgroup><font id="keany"></font><style id="keany"></style><td id="keany"><ruby id="keany"><label id="keany"><xmp id="keany"></xmp></label></ruby></td><strong id="keany"></strong><optgroup id="keany"></optgroup><output id="keany"></output><label id="keany"><progress id="keany"><em id="keany"></em></progress></label><track id="keany"></track><address id="keany"></address><menu id="keany"></menu><ol id="keany"><xmp id="keany"></xmp></ol><ul id="keany"><listing id="keany"></listing></ul><sup id="keany"><dd id="keany"><video id="keany"><ol id="keany"></ol></video></dd></sup><cite id="keany"></cite><form id="keany"><dl id="keany"><pre id="keany"><input id="keany"></input></pre></dl></form><pre id="keany"></pre><center id="keany"><rp id="keany"><sup id="keany"></sup></rp></center><mark id="keany"></mark><acronym id="keany"><samp id="keany"><nobr id="keany"><pre id="keany"></pre></nobr></samp></acronym><menu id="keany"></menu><rt id="keany"><kbd id="keany"><cite id="keany"></cite></kbd></rt><strong id="keany"></strong><font id="keany"></font><abbr id="keany"></abbr><dfn id="keany"></dfn><font id="keany"></font></div><header class="header container"><span id="awaditn" class="logo"><a href="http://www.cdcfah.com/"><img src="/static/new_net_01/images/logo.png" alt="找產(chǎn)品網(wǎng)"></a></span><span id="nlvq83z" class="tigs"> 發(fā)信息做推廣就找產(chǎn)品網(wǎng)<br />企業(yè)電商信息綜合服務(wù)平臺 </span><div id="orlcufe" class="searchbox"><div id="8pnzvoz" class="searchLt"><div id="eep3b8i" class="tabs"><a href="JavaScript:;" data-type="product" class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會</a></div><div id="dlcqw88" class="clearfix searchWrap"><div id="8cyuguv" class="searchInput"><input type="text" name="keywords" placeholder="請輸入搜索關(guān)鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="jsjkbc3" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://www.cdcfah.com/cp/"><span>產(chǎn)品供應(yīng)</span></a></li><li id = "index_news"><a href="http://www.cdcfah.com/zx/"><span>新聞資訊</span></a></li><li id = "index_article"><a href="http://www.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="v3zj8nu" class="twoCol"><div id="iqwiop9" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/second-_wjgj/">五金、工具</a>?<a href="http://www.cdcfah.com/cp/third-wjgj_qtwjgj/">其他五金工具</a>?金屬精密拉伸五金件模具銘豐慶五金制品供應(yīng)</p><div id="3kvmdjh" class="leftbox clearfix"><h1>金屬精密拉伸五金件模具銘豐慶五金制品供應(yīng)</h1><div id="3kgmiyh" class="proBig"><div id="7tjkbhs" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637280074093007813/4737142.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="a879vxj" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637280074093007813/4737142.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="dbs3gx3" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>金屬精密拉伸五金件模具,精密拉伸五金件</p><p><span>***更新：</span>2020-09-01 15:34:38</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="nalcijf" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市銘豐慶五金制品有限公司</a></p><p><span>聯(lián)系人：</span>劉自成</p><p><span>郵箱: </span>657179543@qq.com</p><p><span>電話: </span>13602685781</p><p><span>傳真: </span>0755_84693444</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0755-84006255</p><p><span>地址: </span>深圳市龍崗區(qū)平湖街道辦新木社區(qū)居委會老村路24號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="omn7cd3" class="page-proshow02"><p class="title">詳細說明</p><div id="gokl3hx" class="box"><p><p> 對前工序拉伸產(chǎn)品的凸緣部進行角形再拉伸加工，此種加工要求材料具有良好的塑性，拉伸計算系數(shù) </p> <p> <br /> </p> <p> 拉伸系數(shù)非常重要，一個拉伸件需要分幾步拉伸才能保證不出現(xiàn)開裂，金屬精密拉伸五金件模具、起皺等問題都需要用拉伸系數(shù)公式進行計算，金屬精密拉伸五金件模具。是拉伸工藝核算中的首要工藝參數(shù)之一，金屬精密拉伸五金件模具，一般用它來決議拉伸的次序和次數(shù)。 </p> <p> <br /> </p> <p> 但是，拉伸系數(shù)也不是固定不變的。影響拉伸系數(shù)m的因素比較多，其中包括：材料型號、厚度、拉伸結(jié)構(gòu)類型、拉伸次數(shù)、拉伸速度、拉伸鑲件圓弧過度大小等等。不過，一般都可以查表進行大概計算。 </p> <p> <br /> 在一定的壓力促使下，導(dǎo)致坯料和模具局部表面直接產(chǎn)生摩擦。金屬精密拉伸五金件模具</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="金屬精密拉伸五金件模具,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074093007813/4737142.png"></div><p style="text-indent:25px">金屬拉伸工藝應(yīng)結(jié)合工廠的設(shè)備、人員等實際情況，從零件的質(zhì)量、生產(chǎn)效率、生產(chǎn)成本、勞動強度、環(huán)境的保護以及生產(chǎn)的安全性各個方面綜合考慮，選擇和設(shè)計出技術(shù)先進、經(jīng)濟上合理、使用安全可靠的工藝方案，使生產(chǎn)在保證達到設(shè)計圖樣上所提出的各項技術(shù)要求的基礎(chǔ)上，盡可能降低工藝成本和保證安全生產(chǎn)圓筒拉伸：法蘭與底部均為直面，圓筒為軸對稱，在同一圓周上變形均勻，法蘭上毛坯產(chǎn)生拉深變形,法蘭上毛坯拉伸變形，但變形量與變形比沿輪廓形狀相應(yīng)變化。曲率越大的部分毛坯的變形量就越大;曲率越小的部分毛坯的變形越小。金屬精密拉伸五金件模具便于散熱均勻，從而減少橫向亮斑。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="金屬精密拉伸五金件模具,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074217617188/3733191.png"></div><p> ①控制機械的運動，如內(nèi)燃機中的閥門彈簧片、離合器中的控制彈片等。 </p> <p> <br /> </p> <p> ②吸收振動和沖擊能量，如汽車、火車車廂下的緩沖彈片、聯(lián)軸器中的吸振彈片等。 </p> <p> <br /> </p> <p> ③ 貯存及輸出能量作為動力，如鐘表彈片、***中的彈片等。 </p> <p> <br /> </p> <p> ④用作測力元件，如測力器、彈片秤中的彈片等。彈片的載荷與變形之比稱為彈片剛度，剛度越大，則彈片越硬。按受力性質(zhì)，彈片可分為拉伸彈片、壓縮彈片、扭轉(zhuǎn)彈片和彎曲彈片，按形狀可分為碟形彈片、環(huán)形彈片、板彈片、螺旋彈片、截錐渦卷彈片以及扭桿彈片等。 </p> <p> <br /> </p><p style="text-indent:25px">丘形蓋板件在成形過程中的坯件變形不是簡單的拉伸變形，而是拉伸和脹形變形同時存在的復(fù)合成形。壓料面上坯件的變形為拉伸變形（徑向為拉應(yīng)力，切向為壓應(yīng)力），而輪廓內(nèi)部（特別是中心區(qū)域）坯件的變形為脹形變形（徑向和切向均為拉應(yīng)力）球形件拉伸時，毛坯與凸模的球形頂部局部接觸，其余大部分處于懸空的不受約束的自由狀態(tài)。因此，此類球面零件拉伸的主要工藝問題在于局部接觸部分的嚴重變薄，或曲面部分的失穩(wěn)起皺將拉伸產(chǎn)品的法蘭盤部分進行淺拉伸的加工。其應(yīng)力應(yīng)變情況類似于壓縮翻邊。由于切向受壓應(yīng)力，容易起皺，故成形極限主要受壓縮起皺的限制。在拉伸件拉伸成型工藝中，有一次拉伸成型和多次拉伸成型。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="金屬精密拉伸五金件模具,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074239697266/6761125.png"></div><p> 邊緣拉伸加工：對前工序拉伸產(chǎn)品的凸緣部進行角形再拉伸加工，此種加工要求材料具有良好的塑性。 </p> <p> <br /> </p> <p> 深度拉伸加工：超過拉伸加工極限的拉伸加工產(chǎn)品，需要經(jīng)過兩次以上的多次拉伸方能完成。經(jīng)過前工位深度方向拉伸加工的產(chǎn)品，在深度方向進行再拉伸加工。 </p> <p> <br /> </p> <p> 錐形拉伸加工：h/d>0.8、α =10°～30°的深錐形件，由于深度較大，坯料的變形程度較大，*靠坯料與凸模接觸的局部面積傳遞成形力，極易引起坯料局部過度變薄乃至破裂，需要經(jīng)過多次過渡逐漸成形。 </p> <p> <br /> 沖壓拉伸加工中為什么要用塑性好的金屬材料？沖壓精密拉伸五金件的用途和特點</p><p style="text-indent:25px">拉伸件應(yīng)用于機械、電子、電器、儀表、汽車、航空、**產(chǎn)品。金屬精密拉伸五金件模具</p><p> 開毛坯料 </p> <p> <br /> </p> <p> 一般規(guī)則且形狀簡單的回轉(zhuǎn)體拉伸產(chǎn)品，大部分都屬于非變薄拉伸，可以直接根據(jù)其拉伸前、后面積不變原則進行確定。如果是形狀非常復(fù)雜的拉伸件，有時可能材料會出現(xiàn)嚴重的流動而變薄，一般無法精確計算其開料尺寸，都是事先用3D展開預(yù)估，也就是所謂的試料"多則皺，少則裂”，按此方法判斷材料的流動情況。辦法有：調(diào)整壓邊圈的壓力、增加拉深筋、改變上下模鑲件的圓弧過度半徑、工件上切工藝口等。 </p> <p> <br /> </p> <p> 拉伸件總之是比較有技術(shù)含量的模具類型，不管是對設(shè)計、加工、組裝、還是調(diào)試都是一個挑戰(zhàn)，需要十分謹慎。 </p> <p> <br /> 金屬精密拉伸五金件模具</p><p style="text-indent:25px">深圳市銘豐慶五金制品有限公司是一家一般經(jīng)營項目是：五金制品、彈簧、眼鏡配件、塑膠制品、電子產(chǎn)品的生產(chǎn)和購銷（不含限制項目）（取得消防部門驗收合格后方可開業(yè)）。汽車、電器、電子、眼鏡、智能穿戴、智能通信、五金商標禮品等行業(yè)的配件的生產(chǎn)。的公司，致力于發(fā)展為創(chuàng)新務(wù)實、誠實可信的企業(yè)。公司自創(chuàng)立以來，投身于五金沖壓，精密彈簧，精密五金模具，眼鏡配件，是五金、工具的主力軍。銘豐慶五金制品不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺，以應(yīng)用為重點，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價值，提供更優(yōu)服務(wù)。銘豐慶五金制品始終關(guān)注五金、工具市場，以敏銳的市場洞察力，實現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1119338.html</p></div></div></div></div></div><div id="vjarn38" class="page-right twoColRt"><div id="kciul8k" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="a77ysul" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="3pv3zfq" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" alt="寧波寧海直接考A2有幾個科目真誠推薦寧波助學(xué)商務(wù)信息咨詢供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>寧波寧海直接考A2有幾個科目真誠推薦寧波助學(xué)商務(wù)信息咨詢供應(yīng)</p></a></div><div id="qp3d8xe" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/2083415.html"><div><img src="https://tyunfile.71360.com/UploadFile/WZAJZNKJ/637332852248037109/2461316.png" alt="200l桶自動灌裝機生產(chǎn)廠歡迎來電溫州奧基智能科技供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>200l桶自動灌裝機生產(chǎn)廠歡迎來電溫州奧基智能科技供應(yīng)</p></a></div><div id="virxtua" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/1387.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/8/3/11/637004297269091023_cyjqc_1306937.jpg" alt="烏魯木齊市會務(wù)租車網(wǎng) 車永捷供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>烏魯木齊市會務(wù)租車網(wǎng) 車永捷供應(yīng)</p></a></div><div id="bpaw8v8" class="clear"></div></div><div id="zcit82p" class="box01 box03"><h3><a href="http://www.cdcfah.com/xw/">***產(chǎn)品資訊</a></h3><ul></ul></div></div></section><div id="hpqmy3z" class="page-proshow02"><p class="title">本企業(yè)其它產(chǎn)品 <span style="float:right;"><a >更多>></a></span></p><div id="twcijpb" class="box box-add clearfix"><ul class="box-list"><li><a href="http://www.cdcfah.com/cp/289822.html"><div id="uouvrst" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637278330573730468/9538663.png" alt="寶安沖壓精密導(dǎo)電片加工廠銘豐慶五金制品供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>寶安沖壓精密導(dǎo)電片加工廠銘豐慶五金制品供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/289823.html"><div id="fnduqrx" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637278328137968750/5818112.png" alt="廣州沖壓精密導(dǎo)電片價格多少銘豐慶五金制品供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>廣州沖壓精密導(dǎo)電片價格多少銘豐慶五金制品供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/289824.html"><div id="ga8ziye" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637278327769951171/4727739.png" alt="惠山耐磨防腐精密導(dǎo)電片廠家銘豐慶五金制品供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>惠山耐磨防腐精密導(dǎo)電片廠家銘豐慶五金制品供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/289825.html"><div id="hvhdz8p" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637278327835498046/4579649.png" alt="東莞精密導(dǎo)電片哪里買銘豐慶五金制品供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>東莞精密導(dǎo)電片哪里買銘豐慶五金制品供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/291381.html"><div id="82yzfgw" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637278327738554687/7412828.png" alt="精密導(dǎo)電片哪里好銘豐慶五金制品供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>精密導(dǎo)電片哪里好銘豐慶五金制品供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/291382.html"><div id="8kw3dkq" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637278327691337890/3638402.png" alt="龍崗鍍金精密導(dǎo)電片的用途和特點銘豐慶五金制品供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>龍崗鍍金精密導(dǎo)電片的用途和特點銘豐慶五金制品供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/292455.html"><div id="3jpqwno" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637278327738554687/7412828.png" alt="鍍金精密導(dǎo)電片導(dǎo)電性強銘豐慶五金制品供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>鍍金精密導(dǎo)電片導(dǎo)電性強銘豐慶五金制品供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/292969.html"><div id="driz8oc" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637278327872988281/4158247.png" alt="光明五金精密導(dǎo)電片工廠銘豐慶五金制品供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>光明五金精密導(dǎo)電片工廠銘豐慶五金制品供應(yīng)</p></a></li></ul></div></div><div id="lzvbsjp" class="page-proshow02"><p class="title">同類產(chǎn)品推薦 <span><a href="http://www.cdcfah.com/cp/first-_wjgj/">更多>></a></span></p><div id="nghiplh" class="box box-add clearfix"><ul class="box-list"><li><a href="http://www.cdcfah.com/cp/2613693.html"><div id="gjv7jf8" class="reImg"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/jts789/637143659084150390/7809887.jpg" alt="湖北電動旗桿展會貼心服務(wù) 金銅盛金屬制品供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>湖北電動旗桿展會貼心服務(wù) 金銅盛金屬制品供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/1034197.html"><div id="8evrstf" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637280074093007813/4737142.png" alt="東莞沖壓精密拉伸五金件加工廠銘豐慶五金制品供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>東莞沖壓精密拉伸五金件加工廠銘豐慶五金制品供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/2643566.html"><div id="hkb8bno" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/jts789/637330201899228515/4541714.png" alt="河南公司旗桿批發(fā)公司誠信服務(wù) 金銅盛金屬制品供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>河南公司旗桿批發(fā)公司誠信服務(wù) 金銅盛金屬制品供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/1034196.html"><div id="gevmyjf" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637280074188476563/7643580.png" alt="汕頭耐磨精密拉伸五金件模具銘豐慶五金制品供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>汕頭耐磨精密拉伸五金件模具銘豐慶五金制品供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/67353.html"><div id="3eplrnt" class="reImg"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/szdcgjs/637145995167158203/1220944.jpg" alt="吉林鈀鹽回收聯(lián)系方式歡迎來電蘇州德誠貴金屬回收利用供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>吉林鈀鹽回收聯(lián)系方式歡迎來電蘇州德誠貴金屬回收利用供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/1565982.html"><div id="gzf2u8k" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637280074021494141/8351680.png" alt="珠海耐磨精密拉伸五金件加工銘豐慶五金制品供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>珠海耐磨精密拉伸五金件加工銘豐慶五金制品供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/3607.html"><div id="vyjfbhi" class="reImg"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/szdcgjs/637145994669404297/1161357.jpg" alt="天津鈀水回收貼心服務(wù) 蘇州德誠貴金屬回收利用供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>天津鈀水回收貼心服務(wù) 蘇州德誠貴金屬回收利用供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/6935.html"><div id="3fbhnoa" class="reImg"><img src="http://tyunfile.71360.com/WaterMark/UploadFile/szdcgjs/637145995167158203/1220944.jpg" alt="遼寧鈀碳回收鑄造輝煌蘇州德誠貴金屬回收利用供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>遼寧鈀碳回收鑄造輝煌蘇州德誠貴金屬回收利用供應(yīng)</p></a></li></ul></div></div></section></section><footer class="footer"><div id="z3gx332" class="container"><p><a href="http://www.cdcfah.com/">首頁</a> | <a >企業(yè)名錄</a> | <a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a> | <a href="http://www.cdcfah.com/zx/">新聞資訊</a> | <a href="http://www.cdcfah.com/xw/">行業(yè)資訊</a> | <a href="http://www.cdcfah.com/zh/">展會信息</a> | <a href="http://www.cdcfah.com/sitemap.html">網(wǎng)站地圖</a> | </p><p><p><p>b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上海口乞食品有限公司??<a target="_blank">?<span style="white-space:normal;text-indent:24px;"><a target="_blank"><span style="font-family:" font-size:13.3333px;text-align:center;white-space:pre-wrap;caret-color:#1e6fff;background-color:#ffffff;"="">滬ICP備18002634號-32</span></a> </span><br /></a>??<span>??</span></p></p><p style="text-align:center;white-space:normal;"> <br /> </p> <p style="white-space:normal;text-align:center;"> <a target="_blank"></a> </p></p></div></footer> <footer> <a href="http://www.cdcfah.com/" title="六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u id="qgqbi"></u><noframes id="qgqbi"></noframes><menu id="qgqbi"></menu><blockquote id="qgqbi"></blockquote><track id="qgqbi"><label id="qgqbi"></label></track><tbody id="qgqbi"></tbody><legend id="qgqbi"></legend><th id="qgqbi"><button id="qgqbi"></button></th><listing id="qgqbi"><rt id="qgqbi"></rt></listing><sup id="qgqbi"><dd id="qgqbi"><tbody id="qgqbi"></tbody></dd></sup><menu id="qgqbi"><xmp id="qgqbi"></xmp></menu><fieldset id="qgqbi"><acronym id="qgqbi"></acronym></fieldset><wbr id="qgqbi"><mark id="qgqbi"><strong id="qgqbi"></strong></mark></wbr><tbody id="qgqbi"><small id="qgqbi"></small></tbody><label id="qgqbi"><tfoot id="qgqbi"></tfoot></label><div id="qgqbi"><th id="qgqbi"><object id="qgqbi"></object></th></div><listing id="qgqbi"></listing><source id="qgqbi"><ins id="qgqbi"></ins></source><noframes id="qgqbi"></noframes><noscript id="qgqbi"><strike id="qgqbi"><tt id="qgqbi"></tt></strike></noscript><strike id="qgqbi"><rp id="qgqbi"></rp></strike><dl id="qgqbi"></dl><th id="qgqbi"></th><acronym id="qgqbi"></acronym><center id="qgqbi"><input id="qgqbi"><div id="qgqbi"><th id="qgqbi"></th></div></input></center><label id="qgqbi"></label><tr id="qgqbi"><label id="qgqbi"><center id="qgqbi"></center></label></tr><menuitem id="qgqbi"><em id="qgqbi"><legend id="qgqbi"></legend></em></menuitem><pre id="qgqbi"></pre><fieldset id="qgqbi"><address id="qgqbi"><abbr id="qgqbi"><dl id="qgqbi"></dl></abbr></address></fieldset><sup id="qgqbi"><form id="qgqbi"></form></sup><form id="qgqbi"></form> <form id="qgqbi"></form><center id="qgqbi"><rp id="qgqbi"></rp></center><code id="qgqbi"></code><option id="qgqbi"><i id="qgqbi"><tr id="qgqbi"></tr></i></option><address id="qgqbi"></address><pre id="qgqbi"></pre><wbr id="qgqbi"></wbr><dl id="qgqbi"><delect id="qgqbi"><bdo id="qgqbi"></bdo></delect></dl><table id="qgqbi"><p id="qgqbi"></p></table><label id="qgqbi"><xmp id="qgqbi"><noscript id="qgqbi"><dl id="qgqbi"></dl></noscript></xmp></label><cite id="qgqbi"></cite><acronym id="qgqbi"><object id="qgqbi"><big id="qgqbi"></big></object></acronym><rp id="qgqbi"></rp><tt id="qgqbi"></tt><output id="qgqbi"></output><table id="qgqbi"><p id="qgqbi"><ruby id="qgqbi"></ruby></p></table><tt id="qgqbi"><tbody id="qgqbi"><acronym id="qgqbi"><b id="qgqbi"></b></acronym></tbody></tt><u id="qgqbi"></u><bdo id="qgqbi"><tr id="qgqbi"><dfn id="qgqbi"></dfn></tr></bdo><strike id="qgqbi"><font id="qgqbi"></font></strike><s id="qgqbi"></s><acronym id="qgqbi"><samp id="qgqbi"><code id="qgqbi"><pre id="qgqbi"></pre></code></samp></acronym><cite id="qgqbi"></cite><form id="qgqbi"><dl id="qgqbi"><pre id="qgqbi"><label id="qgqbi"></label></pre></dl></form><center id="qgqbi"><rp id="qgqbi"></rp></center><font id="qgqbi"></font><menu id="qgqbi"></menu><small id="qgqbi"><strong id="qgqbi"><sup id="qgqbi"><form id="qgqbi"></form></sup></strong></small><label id="qgqbi"><tfoot id="qgqbi"><em id="qgqbi"></em></tfoot></label><optgroup id="qgqbi"><fieldset id="qgqbi"><thead id="qgqbi"><strong id="qgqbi"></strong></thead></fieldset></optgroup><label id="qgqbi"></label><meter id="qgqbi"><noframes id="qgqbi"><i id="qgqbi"><ins id="qgqbi"></ins></i></noframes></meter><kbd id="qgqbi"></kbd><b id="qgqbi"></b><dl id="qgqbi"><delect id="qgqbi"><th id="qgqbi"><span id="qgqbi"></span></th></delect></dl><font id="qgqbi"></font><small id="qgqbi"></small><mark id="qgqbi"></mark><del id="qgqbi"><dfn id="qgqbi"><source id="qgqbi"><tr id="qgqbi"></tr></source></dfn></del><dd id="qgqbi"><ruby id="qgqbi"><menu id="qgqbi"></menu></ruby></dd><th id="qgqbi"><em id="qgqbi"></em></th><abbr id="qgqbi"></abbr><span id="qgqbi"><kbd id="qgqbi"><dfn id="qgqbi"><sub id="qgqbi"></sub></dfn></kbd></span><ins id="qgqbi"></ins><s id="qgqbi"><progress id="qgqbi"></progress></s><th id="qgqbi"></th><bdo id="qgqbi"></bdo><blockquote id="qgqbi"></blockquote><b id="qgqbi"></b><nav id="qgqbi"><div id="qgqbi"></div></nav> <meter id="qgqbi"><dfn id="qgqbi"><source id="qgqbi"><tr id="qgqbi"></tr></source></dfn></meter><tfoot id="qgqbi"></tfoot><big id="qgqbi"><pre id="qgqbi"><s id="qgqbi"></s></pre></big><small id="qgqbi"></small><table id="qgqbi"><td id="qgqbi"><sup id="qgqbi"></sup></td></table><form id="qgqbi"><tr id="qgqbi"></tr></form><tr id="qgqbi"><fieldset id="qgqbi"><thead id="qgqbi"><strong id="qgqbi"></strong></thead></fieldset></tr><ul id="qgqbi"></ul><center id="qgqbi"><optgroup id="qgqbi"><div id="qgqbi"></div></optgroup></center><rp id="qgqbi"><input id="qgqbi"><blockquote id="qgqbi"><th id="qgqbi"></th></blockquote></input></rp><tbody id="qgqbi"></tbody><form id="qgqbi"><u id="qgqbi"><fieldset id="qgqbi"></fieldset></u></form><rp id="qgqbi"></rp><b id="qgqbi"><small id="qgqbi"></small></b><dd id="qgqbi"></dd><kbd id="qgqbi"></kbd><code id="qgqbi"><pre id="qgqbi"><ul id="qgqbi"></ul></pre></code><strong id="qgqbi"></strong><cite id="qgqbi"><sub id="qgqbi"></sub></cite><object id="qgqbi"></object><dfn id="qgqbi"></dfn><pre id="qgqbi"></pre><xmp id="qgqbi"></xmp><pre id="qgqbi"></pre><sup id="qgqbi"><form id="qgqbi"><cite id="qgqbi"></cite></form></sup><tt id="qgqbi"><tbody id="qgqbi"><acronym id="qgqbi"><b id="qgqbi"></b></acronym></tbody></tt><input id="qgqbi"></input><acronym id="qgqbi"><samp id="qgqbi"><code id="qgqbi"></code></samp></acronym><nobr id="qgqbi"><pre id="qgqbi"><ul id="qgqbi"><strong id="qgqbi"></strong></ul></pre></nobr><menuitem id="qgqbi"><em id="qgqbi"><wbr id="qgqbi"><mark id="qgqbi"></mark></wbr></em></menuitem><dl id="qgqbi"></dl><rp id="qgqbi"><input id="qgqbi"><div id="qgqbi"></div></input></rp><div id="qgqbi"><button id="qgqbi"><pre id="qgqbi"><meter id="qgqbi"></meter></pre></button></div><address id="qgqbi"></address><thead id="qgqbi"><abbr id="qgqbi"><sup id="qgqbi"></sup></abbr></thead><em id="qgqbi"></em><ul id="qgqbi"><listing id="qgqbi"><wbr id="qgqbi"></wbr></listing></ul><listing id="qgqbi"></listing><wbr id="qgqbi"></wbr><thead id="qgqbi"><abbr id="qgqbi"><strike id="qgqbi"></strike></abbr></thead><menuitem id="qgqbi"></menuitem><pre id="qgqbi"></pre><pre id="qgqbi"></pre><dl id="qgqbi"><delect id="qgqbi"><bdo id="qgqbi"><span id="qgqbi"></span></bdo></delect></dl><ruby id="qgqbi"></ruby><pre id="qgqbi"><strike id="qgqbi"><tt id="qgqbi"><i id="qgqbi"></i></tt></strike></pre><fieldset id="qgqbi"><address id="qgqbi"></address></fieldset><cite id="qgqbi"><sub id="qgqbi"></sub></cite><optgroup id="qgqbi"></optgroup><fieldset id="qgqbi"><address id="qgqbi"></address></fieldset></div> <div class="friend-links"> <a href="http://www.bjcldhs.com">亚洲另类在线欧美制服</a> <a href="http://www.ahlxmyzz.com">色七七在线综合视频</a> <a href="http://www.junzishuo.com">亚洲中文字幕久久精品91</a> <a href="http://www.yhzblp.com">国产精品自在在线免费</a> <a href="http://www.zwlkg.com">久久国产乱子伦精品免费午夜</a> </div> </footer> <script> (function(){ var bp = document.createElement('script'); var curProtocol = window.location.protocol.split(':')[0]; if (curProtocol === 'https') { bp.src = 'https://zz.bdstatic.com/linksubmit/push.js'; } else { bp.src = 'http://push.zhanzhang.baidu.com/push.js'; } var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(bp, s); })(); </script> </body><div id="ipsl2" class="pl_css_ganrao" style="display: none;"><address id="ipsl2"></address><u id="ipsl2"></u><acronym id="ipsl2"><strong id="ipsl2"><dl id="ipsl2"><pre id="ipsl2"></pre></dl></strong></acronym><pre id="ipsl2"><strike id="ipsl2"><option id="ipsl2"></option></strike></pre><i id="ipsl2"></i><option id="ipsl2"><source id="ipsl2"><menuitem id="ipsl2"></menuitem></source></option><strong id="ipsl2"></strong><bdo id="ipsl2"><span id="ipsl2"></span></bdo><acronym id="ipsl2"><object id="ipsl2"></object></acronym><dfn id="ipsl2"><sub id="ipsl2"><tr id="ipsl2"></tr></sub></dfn><button id="ipsl2"></button><em id="ipsl2"><sup id="ipsl2"></sup></em><strike id="ipsl2"><rp id="ipsl2"><nav id="ipsl2"></nav></rp></strike><pre id="ipsl2"><meter id="ipsl2"><option id="ipsl2"></option></meter></pre><rt id="ipsl2"></rt><big id="ipsl2"></big><pre id="ipsl2"><label id="ipsl2"><progress id="ipsl2"></progress></label></pre><dfn id="ipsl2"><center id="ipsl2"></center></dfn><th id="ipsl2"><span id="ipsl2"><dfn id="ipsl2"><cite id="ipsl2"></cite></dfn></span></th><listing id="ipsl2"></listing><label id="ipsl2"><xmp id="ipsl2"><rp id="ipsl2"><dl id="ipsl2"></dl></rp></xmp></label><track id="ipsl2"></track><acronym id="ipsl2"><strong id="ipsl2"><strike id="ipsl2"></strike></strong></acronym><cite id="ipsl2"><center id="ipsl2"><optgroup id="ipsl2"><div id="ipsl2"></div></optgroup></center></cite><label id="ipsl2"><progress id="ipsl2"><em id="ipsl2"></em></progress></label><tfoot id="ipsl2"></tfoot><code id="ipsl2"></code><i id="ipsl2"><tr id="ipsl2"><dfn id="ipsl2"><strike id="ipsl2"></strike></dfn></tr></i><rt id="ipsl2"></rt><center id="ipsl2"></center><dfn id="ipsl2"></dfn><video id="ipsl2"><ol id="ipsl2"><samp id="ipsl2"><small id="ipsl2"></small></samp></ol></video><pre id="ipsl2"></pre><var id="ipsl2"></var><strike id="ipsl2"></strike><abbr id="ipsl2"></abbr><pre id="ipsl2"><meter id="ipsl2"><nobr id="ipsl2"></nobr></meter></pre><form id="ipsl2"><dl id="ipsl2"><pre id="ipsl2"><label id="ipsl2"></label></pre></dl></form><bdo id="ipsl2"></bdo><video id="ipsl2"></video><u id="ipsl2"></u><thead id="ipsl2"><ruby id="ipsl2"><ol id="ipsl2"></ol></ruby></thead><output id="ipsl2"></output><listing id="ipsl2"></listing><tr id="ipsl2"></tr><th id="ipsl2"><button id="ipsl2"><object id="ipsl2"></object></button></th><tbody id="ipsl2"></tbody><big id="ipsl2"></big><em id="ipsl2"></em><nobr id="ipsl2"><pre id="ipsl2"><u id="ipsl2"></u></pre></nobr></div></html>