襄陽(yáng)**度螺栓推薦咨詢柳州市華僑緊固件供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="要做一系列的試驗(yàn)才能確定螺栓性能等級(jí)，沒有儀器做出各類數(shù)值，怎么確認(rèn)呢！直觀就是外表上專有8.8字樣或4.8字樣，沒有屬則默認(rèn)為4.8級(jí)。再者就是檢驗(yàn)報(bào)告了，如果是正規(guī)廠生產(chǎn)的螺栓，則可依檢驗(yàn)報(bào)告確認(rèn)等級(jí)。普通4.8其實(shí)基本不用驗(yàn)證等級(jí)與性"><meta name="keywords" content="襄陽(yáng)**度螺栓,螺栓"><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="1yxys" class="pl_css_ganrao" style="display: none;"><acronym id="1yxys"></acronym><p id="1yxys"></p><tbody id="1yxys"></tbody><label id="1yxys"><bdo id="1yxys"><tr id="1yxys"></tr></bdo></label><legend id="1yxys"></legend><sup id="1yxys"></sup><del id="1yxys"><center id="1yxys"></center></del><big id="1yxys"></big><ins id="1yxys"></ins><pre id="1yxys"></pre><meter id="1yxys"><noframes id="1yxys"><source id="1yxys"></source></noframes></meter><tbody id="1yxys"><ol id="1yxys"></ol></tbody><form id="1yxys"><legend id="1yxys"><pre id="1yxys"></pre></legend></form><td id="1yxys"><dl id="1yxys"><dfn id="1yxys"><rp id="1yxys"></rp></dfn></dl></td><noframes id="1yxys"><p id="1yxys"><tr id="1yxys"><optgroup id="1yxys"></optgroup></tr></p></noframes><th id="1yxys"></th><th id="1yxys"><rt id="1yxys"><del id="1yxys"><dfn id="1yxys"></dfn></del></rt></th><dfn id="1yxys"></dfn><video id="1yxys"></video><optgroup id="1yxys"></optgroup><bdo id="1yxys"><span id="1yxys"><dfn id="1yxys"></dfn></span></bdo><strike id="1yxys"></strike><menuitem id="1yxys"><listing id="1yxys"><wbr id="1yxys"></wbr></listing></menuitem><rp id="1yxys"><input id="1yxys"><div id="1yxys"><th id="1yxys"></th></div></input></rp><video id="1yxys"></video><small id="1yxys"><p id="1yxys"><ruby id="1yxys"></ruby></p></small><th id="1yxys"><rt id="1yxys"><del id="1yxys"><dfn id="1yxys"></dfn></del></rt></th><table id="1yxys"><p id="1yxys"><sup id="1yxys"><optgroup id="1yxys"></optgroup></sup></p></table><tbody id="1yxys"><ol id="1yxys"></ol></tbody><dfn id="1yxys"></dfn><kbd id="1yxys"></kbd><sub id="1yxys"></sub><video id="1yxys"><menu id="1yxys"><big id="1yxys"><track id="1yxys"></track></big></menu></video><table id="1yxys"><td id="1yxys"><ruby id="1yxys"></ruby></td></table><video id="1yxys"></video><dfn id="1yxys"><center id="1yxys"><tr id="1yxys"></tr></center></dfn><var id="1yxys"><address id="1yxys"></address></var><tt id="1yxys"></tt><acronym id="1yxys"><strong id="1yxys"><samp id="1yxys"></samp></strong></acronym><legend id="1yxys"><dfn id="1yxys"><table id="1yxys"><p id="1yxys"></p></table></dfn></legend><th id="1yxys"></th><dfn id="1yxys"><sub id="1yxys"></sub></dfn><style id="1yxys"></style><track id="1yxys"></track><form id="1yxys"><legend id="1yxys"><pre id="1yxys"><input id="1yxys"></input></pre></legend></form><dl id="1yxys"></dl><tbody id="1yxys"></tbody><dl id="1yxys"></dl><i id="1yxys"><tr id="1yxys"><abbr id="1yxys"><strike id="1yxys"></strike></abbr></tr></i></div><header class="header container"><span id="fktydfr" 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="8yxjggg" 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(tái) </span><div id="wlfcoql" class="searchbox"><div id="r33nnuw" class="searchLt"><div id="zqc9lxj" 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(huì)</a></div><div id="odapb3b" class="clearfix searchWrap"><div id="3rmbxjg" class="searchInput"><input type="text" name="keywords" placeholder="請(qǐng)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="ysobnug" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁(yè)</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(huì)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="f8r28eo" class="twoCol"><div id="etfxjqs" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_wjgj/">五金、工具</a>?<a href="http://www.cdcfah.com/cp/second-wjgj_jgjljjlg/">緊固件、連接件</a>?<a href="http://www.cdcfah.com/cp/third-jgjljjlg_luoshuanyx/">螺栓</a>?襄陽(yáng)**度螺栓推薦咨詢柳州市華僑緊固件供應(yīng)</p><div id="dna3sta" class="leftbox clearfix"><h1>襄陽(yáng)**度螺栓推薦咨詢柳州市華僑緊固件供應(yīng)</h1><div id="bqnumd8" class="proBig"><div id="tm2s2yf" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389547990905018/8722330.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="m7gvw33" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389547990905018/8722330.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="9subnzo" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>廣西壯族自治區(qū)</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>襄陽(yáng)**度螺栓,螺栓</p><p><span>***更新：</span>2020-12-17 02:11:44</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ut9w9km" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">柳州市華僑緊固件有限公司</a></p><p><span>聯(lián)系人：</span>唐忠玉</p><p><span>郵箱: </span>2282305088@qq.com</p><p><span>電話: </span>13907724831</p><p><span>傳真: </span>0772_</p><p><span>網(wǎng)址: </span>http://www.hqfastner.com</p><p><span>手機(jī): </span>0772-7507381</p><p><span>地址: </span>廣西穿山鎮(zhèn)興泰路8號(hào)</p><p>[當(dāng)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="etn732r" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="gfjq2ry" class="box"><p><p> 要做一系列的試驗(yàn)才能確定螺栓性能等級(jí)，沒有儀器做出各類數(shù)值，怎么確認(rèn)呢！直觀就是外表上專有8.8字樣或4.8字樣，沒有屬則默認(rèn)為4.8級(jí)。再者就是檢驗(yàn)報(bào)告了，如果是正規(guī)廠生產(chǎn)的螺栓，則可依檢驗(yàn)報(bào)告確認(rèn)等級(jí)。 </p> <p> 普通4.8其實(shí)基本不用驗(yàn)證等級(jí)與性能，只要外觀與國(guó)標(biāo)尺寸一致就沒問題 </p> <p> **8.8或10.9只有靠廠家提供的質(zhì)量檢驗(yàn)報(bào)告來判斷，不過呢，如果你買到假貨，那么檢驗(yàn)報(bào)告也就是偽造的了。也不可信了。 </p> <p> 比較簡(jiǎn)單的一種驗(yàn)證真?zhèn)畏椒ǎ河猛刃吞?hào)4.8與8.8螺栓的帶扣端互相敲擊，結(jié)果是：4.8級(jí)扣上有明顯刻痕，8，襄陽(yáng)**度螺栓.8應(yīng)該沒有，襄陽(yáng)**度螺栓，襄陽(yáng)**度螺栓，兩者有明顯區(qū)別，則兩者基本為真。如兩者都有刻痕，且沒有明顯區(qū)別，則肯定8.8為假。 </p> <p> 如果基本確定為真**，在沒有儀器或不方便送檢的情況下索要材質(zhì)單就行了，性能等級(jí)一目了然。 </p> <p> 如果是假，則等級(jí)降至4.8級(jí) </p> <p> <br /> 螺栓的等級(jí)都有什么含義？襄陽(yáng)**度螺栓</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="襄陽(yáng)**度螺栓,螺栓" src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389547990905018/8722330.jpg"></div><p> **螺栓連接是通過螺栓桿內(nèi)很大的擰緊預(yù)拉力把連接板的板件夾緊，足以產(chǎn)生很大的摩擦力，從而提高連接的整體性和剛度，當(dāng)受剪力時(shí)，按照設(shè)計(jì)和受力要求的不同，可分為**螺栓摩擦型連接和**螺栓承壓型連接兩種，兩者的本質(zhì)區(qū)別是極限狀態(tài)不同，雖然是同一種螺栓，但是在計(jì)算方法、要求、適用范圍等方面都有很大的不同。 </p> <p> 在抗剪設(shè)計(jì)時(shí)，**螺栓摩擦型連接是以外剪力達(dá)到板件接觸面間由螺栓擰緊力所提供的可能比較大摩擦力作為極限狀態(tài)，也即是保證連接在整個(gè)使用期間內(nèi)外剪力不超過比較大摩擦力。板件不會(huì)發(fā)生相對(duì)滑移變形（螺桿和孔壁之間始終保持原有的空隙量），被連接板件按彈性整體受力。襄陽(yáng)**度螺栓標(biāo)準(zhǔn)螺栓的長(zhǎng)度有哪些？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="襄陽(yáng)**度螺栓,螺栓" src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389547990943891/9607099.jpg"></div><p> 螺母即螺帽，二者為同一個(gè)物體，螺絲、螺栓、螺帽（螺母）三者的區(qū)別如下： </p> <p> <br /> </p> <p> 一、外觀不同 </p> <p> <br /> </p> <p> 1、螺絲：前端有尖頭的那種，螺距較大，斜面圓形旋轉(zhuǎn)體結(jié)構(gòu)。 </p> <p> <br /> </p> <p> 2、螺栓：配用螺母的圓柱形帶螺紋的緊固件，有六角頭的，圓頭的，方形頭的，沉頭的等等。 </p> <p> <br /> </p> <p> 3、螺帽（螺母）：一般為扁平中空的多面柱體結(jié)構(gòu)。 </p> <p> <br /> </p> <p> 二、作用不同 </p> <p> <br /> </p> <p> 1、螺絲：利用物體的斜面圓形旋轉(zhuǎn)和摩擦力的物理學(xué)和數(shù)學(xué)原理，循序漸進(jìn)地緊固器物機(jī)件的工具。 </p> <p> <br /> </p> <p> 2、螺栓：機(jī)械零件，配用螺母的圓柱形帶螺紋的緊固件。由頭部和螺桿（帶有外螺紋的圓柱體）兩部分組成的一類緊固件，需與螺母配合，用于緊固連接兩個(gè)帶有通孔的零件。 </p> <p> <br /> </p> <p> 3、螺帽（螺母）：螺母（螺帽）是將機(jī)械設(shè)備緊密連接起來的零件，通過內(nèi)側(cè)的螺紋，同等規(guī)格螺母和螺栓才能連接在一起。 </p> <p> <br /> </p><p> 螺栓的表示方法是直徑和長(zhǎng)度。普通的粗牙螺紋是這樣標(biāo)注的M8*15.細(xì)牙是M8*15*1.也就是要把回螺距也標(biāo)注上去。答粗牙是不標(biāo)螺距的，細(xì)牙才標(biāo)。 </p> <p> 螺栓：由頭部和螺桿（帶有外螺紋的圓柱體）兩部分組成的一類緊固件，螺栓需與螺母配合，用于緊固連接兩個(gè)帶有通孔的零件。這種連接形式稱螺栓連接。如把螺母從螺栓上旋下，又可以使這兩個(gè)零件分開，所以螺栓連接是屬于可拆卸連接。其中六角頭是常用的，一般沉頭用在要求連接的地方。 </p> <p> <br /> 螺栓的裝配有哪些要求？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="襄陽(yáng)**度螺栓,螺栓" src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389547995514059/3114760.jpg"></div><p> 1、螺絲：螺絲為日常生活中不可或缺的工業(yè)必需品：如照相機(jī)、眼鏡、鐘表、電子等使用微型螺絲；電視、電氣制品、樂器、家具等之一般螺絲；至于工程、建筑、橋梁則使用大型螺絲、螺帽；交通器具、飛機(jī)、電車、汽車等則為大小螺絲并用。 </p> <p> <br /> </p> <p> 2、螺栓：螺栓在日常生活當(dāng)中和工業(yè)生產(chǎn)制造當(dāng)中，是少不了的，螺栓也被稱為工業(yè)之米。可見螺栓的運(yùn)用之普遍。螺栓的運(yùn)用范圍有電子產(chǎn)品，機(jī)械產(chǎn)品，數(shù)碼產(chǎn)品，電力設(shè)備，機(jī)電機(jī)械產(chǎn)品等等。 </p> <p> <br /> </p> <p> 3、螺帽（螺母）：主要用于汽車業(yè)--轎車，卡車，客車，壓縮機(jī)，建筑機(jī)械，風(fēng)力發(fā)電設(shè)備，農(nóng)用機(jī)械，緊固件，鑄造業(yè)，鉆孔設(shè)備。 </p> <p> <br /> 螺栓的型號(hào)都有哪些表示方法？襄陽(yáng)**度螺栓</p><p style="text-indent:25px">在柳州買螺栓哪家好？襄陽(yáng)**度螺栓</p><p> 螺栓按連接的受力方式分：分普通的和有鉸制孔用的。 </p> <p> <br /> </p> <p> 螺栓按頭部形狀分：有六角頭的，圓頭的，方形頭的，沉頭的等等。其中六角頭是常用的，沉頭用在要求連接的地方。 </p> <p> <br /> </p> <p> 螺栓按螺紋的牙型分為粗牙和細(xì)牙兩類，粗牙型在螺栓的標(biāo)志中不顯示。螺栓按照性能等級(jí)分為3.6、4.8、5.6、6.8、8.8、9.8、10.9、12.9八個(gè)等級(jí)。 </p> <p> <br /> </p> <p> 其中8.8級(jí)以上(含8.8級(jí))螺栓材質(zhì)為低碳合金鋼或中碳鋼并經(jīng)熱處理(淬火+回火)，通稱**度螺栓，8.8級(jí)以下(不含8.8級(jí))通稱普通螺栓。 </p> <p> <br /> </p> <p> 普通螺栓按照制作精度可分為A、B、C三個(gè)等級(jí)，A、B級(jí)為精制螺栓，C級(jí)為粗制螺栓。對(duì)于鋼結(jié)構(gòu)用連接螺栓，除特別注明外，一般為普通粗制C級(jí)螺栓。 </p> <p> <br /> </p> <p> 螺母規(guī)格表是具體詳細(xì)的把各種各式的螺母統(tǒng)一起來，用表格把螺母的一些規(guī)格細(xì)分出來。螺母有很多種類，也有不同材質(zhì)的螺母。 </p> <p> <br /> </p> <p> 每類螺母都有不同的規(guī)格，每種螺絲也有它具有的機(jī)械性能和作用。 </p> <p> <br /> 襄陽(yáng)**度螺栓</p><p style="text-indent:25px">柳州市華僑緊固件有限公司是一家**度標(biāo)準(zhǔn)緊固件、**度金屬絲制品、普通標(biāo)準(zhǔn)緊固件、普通金屬絲制品、五金機(jī)械、汽車配件、工程機(jī)械配件生產(chǎn)、銷售:金屬熱處理加工、道路貨物運(yùn)輸服務(wù)、廠房租賃、機(jī)械設(shè)備租賃。(依法須經(jīng)批準(zhǔn)的項(xiàng)目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營(yíng)活動(dòng)。)的公司，是一家集研發(fā)、設(shè)計(jì)、生產(chǎn)和銷售為一體的專業(yè)化公司。柳州華僑緊固件作為**度標(biāo)準(zhǔn)緊固件、**度金屬絲制品、普通標(biāo)準(zhǔn)緊固件、普通金屬絲制品、五金機(jī)械、汽車配件、工程機(jī)械配件生產(chǎn)、銷售:金屬熱處理加工、道路貨物運(yùn)輸服務(wù)、廠房租賃、機(jī)械設(shè)備租賃。(依法須經(jīng)批準(zhǔn)的項(xiàng)目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營(yíng)活動(dòng)。)的企業(yè)之一，為客戶提供良好的緊固件，螺栓，標(biāo)準(zhǔn)件，螺絲。柳州華僑緊固件始終以本分踏實(shí)的精神和必勝的信念，影響并帶動(dòng)團(tuán)隊(duì)取得成功。柳州華僑緊固件始終關(guān)注五金、工具行業(yè)。滿足市場(chǎng)需求，提高產(chǎn)品價(jià)值，是我們前行的力量。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2434131.html</p></div></div></div></div></div><div id="vu7ztkr" class="page-right twoColRt"><div id="crtkefm" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="xheb3mj" 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(qiáng) 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(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="s33wgct" 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(gè)科目真誠(chéng)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(gè)科目真誠(chéng)推薦寧波助學(xué)商務(wù)信息咨詢供應(yīng)</p></a></div><div id="jdkhqr7" 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(dòng)灌裝機(jī)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(dòng)灌裝機(jī)生產(chǎn)廠歡迎來電溫州奧基智能科技供應(yīng)</p></a></div><div id="ico7qrd" 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(huì)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(huì)務(wù)租車網(wǎng) 車永捷供應(yīng)</p></a></div><div id="icj8kwd" class="clear"></div></div><div id="y8ikrt3" 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="yc3xovx" 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="yn2ev7z" class="box box-add clearfix"><ul class="box-list"><li><a href="http://www.cdcfah.com/cp/1664481.html"><div id="n2ikbip" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389550466881280/4321126.jpg" alt="岳陽(yáng)工業(yè)緊固件柳州市華僑緊固件供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>岳陽(yáng)工業(yè)緊固件柳州市華僑緊固件供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/1665622.html"><div id="lk3v2qi" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389547995514059/3114760.jpg" alt="潮州生產(chǎn)螺絲柳州市華僑緊固件供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>潮州生產(chǎn)螺絲柳州市華僑緊固件供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/1667714.html"><div id="ispwypw" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389645003170367/3786013.jpg" alt="濮陽(yáng)五金標(biāo)準(zhǔn)件柳州市華僑緊固件供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>濮陽(yáng)五金標(biāo)準(zhǔn)件柳州市華僑緊固件供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/1668768.html"><div id="s7dvx2c" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389550465308974/5326627.jpg" alt="攀枝花美標(biāo)緊固件柳州市華僑緊固件供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>攀枝花美標(biāo)緊固件柳州市華僑緊固件供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/1669837.html"><div id="8of2gi7" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389550466246459/8638059.jpg" alt="陽(yáng)江螺絲生產(chǎn) 柳州市華僑緊固件供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>陽(yáng)江螺絲生產(chǎn) 柳州市華僑緊固件供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/1669838.html"><div id="hrovsel" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389645005504298/648006.jpg" alt="儋州標(biāo)準(zhǔn)件電話柳州市華僑緊固件供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>儋州標(biāo)準(zhǔn)件電話柳州市華僑緊固件供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/1671024.html"><div id="xhjvcta" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389547995601986/1660612.jpg" alt="曲靖螺栓柳州市華僑緊固件供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>曲靖螺栓柳州市華僑緊固件供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/1671025.html"><div id="qahogxz" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389547992545302/9944589.jpg" alt="郴州螺栓廠家柳州市華僑緊固件供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>郴州螺栓廠家柳州市華僑緊固件供應(yīng)</p></a></li></ul></div></div><div id="rwoac78" 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="8ub8xzr" class="box box-add clearfix"><ul class="box-list"><li><a href="http://www.cdcfah.com/cp/945722.html"><div id="8a823yl" class="reImg"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/besdfj/637225383579628906/5648470.jpg" alt="上海質(zhì)量DIN6912廠家直供和諧共贏栢爾斯道弗供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>上海質(zhì)量DIN6912廠家直供和諧共贏栢爾斯道弗供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/1671024.html"><div id="dxe3gsj" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389547995601986/1660612.jpg" alt="曲靖螺栓柳州市華僑緊固件供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>曲靖螺栓柳州市華僑緊固件供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/29797.html"><div id="8ejahyf" class="reImg"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/besdfj/637214438530810547/9912393.jpg" alt="浙江**C3-80螺栓推薦貨源歡迎來電栢爾斯道弗供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>浙江**C3-80螺栓推薦貨源歡迎來電栢爾斯道弗供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/1388953.html"><div id="isp7xev" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/ksdhhy/637345561735996094/3256150.png" alt="江西馬車螺栓生產(chǎn)銷售廠家昆山東徽恒業(yè)精密五金供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>江西馬車螺栓生產(chǎn)銷售廠家昆山東徽恒業(yè)精密五金供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/1293071.html"><div id="wldkcea" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/ksdhhy/637345560753925781/9323347.png" alt="南通熱鍍鋅螺栓螺母昆山東徽恒業(yè)精密五金供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>南通熱鍍鋅螺栓螺母昆山東徽恒業(yè)精密五金供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/3202587.html"><div id="nc3lhjv" class="reImg"><img src="http://tyunfile.71360.com/UpLoadFile/besdfj/2019/5/636945454556054138/6369454545560541389801695.png" alt="江蘇官方進(jìn)口A4-80緊固件鑄造輝煌栢爾斯道弗供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>江蘇官方進(jìn)口A4-80緊固件鑄造輝煌栢爾斯道弗供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/834391.html"><div id="tdaxzqx" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/SZSGTWJ/637320772402792969/8505821.png" alt="廣東膨脹螺栓原理信息推薦深圳盛固特五金制品供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>廣東膨脹螺栓原理信息推薦深圳盛固特五金制品供應(yīng)</p></a></li><li><a href="http://www.cdcfah.com/cp/1671025.html"><div id="qpryah3" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389547992545302/9944589.jpg" alt="郴州螺栓廠家柳州市華僑緊固件供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>郴州螺栓廠家柳州市華僑緊固件供應(yīng)</p></a></li></ul></div></div></section></section><footer class="footer"><div id="tnu2r87" class="container"><p><a href="http://www.cdcfah.com/">首頁(yè)</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(huì)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(tái)【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(hào)-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="5zmnc" class="pl_css_ganrao" style="display: none;"><td id="5zmnc"></td><sup id="5zmnc"><form id="5zmnc"></form></sup><acronym id="5zmnc"></acronym><legend id="5zmnc"></legend><tt id="5zmnc"><tbody id="5zmnc"><menuitem id="5zmnc"></menuitem></tbody></tt><th id="5zmnc"><rt id="5zmnc"><del id="5zmnc"><dfn id="5zmnc"></dfn></del></rt></th><u id="5zmnc"></u><strong id="5zmnc"></strong><video id="5zmnc"><menu id="5zmnc"><samp id="5zmnc"><track id="5zmnc"></track></samp></menu></video><address id="5zmnc"></address><pre id="5zmnc"></pre><acronym id="5zmnc"><samp id="5zmnc"><code id="5zmnc"></code></samp></acronym><i id="5zmnc"></i><sup id="5zmnc"><dd id="5zmnc"><tbody id="5zmnc"><ol id="5zmnc"></ol></tbody></dd></sup><option id="5zmnc"><i id="5zmnc"></i></option><b id="5zmnc"></b><ins id="5zmnc"><optgroup id="5zmnc"><strike id="5zmnc"><rp id="5zmnc"></rp></strike></optgroup></ins><dfn id="5zmnc"><strike id="5zmnc"><output id="5zmnc"></output></strike></dfn><form id="5zmnc"><u id="5zmnc"><thead id="5zmnc"></thead></u></form><label id="5zmnc"></label><tfoot id="5zmnc"></tfoot><form id="5zmnc"></form><ins id="5zmnc"><optgroup id="5zmnc"><center id="5zmnc"><rp id="5zmnc"></rp></center></optgroup></ins><xmp id="5zmnc"></xmp><i id="5zmnc"><tr id="5zmnc"><abbr id="5zmnc"><strike id="5zmnc"></strike></abbr></tr></i><acronym id="5zmnc"><strong id="5zmnc"><strike id="5zmnc"></strike></strong></acronym><output id="5zmnc"></output><optgroup id="5zmnc"><div id="5zmnc"><video id="5zmnc"></video></div></optgroup><sub id="5zmnc"><li id="5zmnc"><th id="5zmnc"></th></li></sub><menuitem id="5zmnc"><listing id="5zmnc"><address id="5zmnc"></address></listing></menuitem><style id="5zmnc"></style><dl id="5zmnc"></dl><em id="5zmnc"><style id="5zmnc"><mark id="5zmnc"></mark></style></em><rp id="5zmnc"><dl id="5zmnc"><tt id="5zmnc"></tt></dl></rp><acronym id="5zmnc"></acronym><strong id="5zmnc"></strong><code id="5zmnc"></code><span id="5zmnc"><kbd id="5zmnc"><dfn id="5zmnc"><sub id="5zmnc"></sub></dfn></kbd></span><menuitem id="5zmnc"></menuitem><kbd id="5zmnc"></kbd><thead id="5zmnc"><ruby id="5zmnc"><ol id="5zmnc"></ol></ruby></thead><optgroup id="5zmnc"></optgroup><menu id="5zmnc"><legend id="5zmnc"></legend></menu><del id="5zmnc"><cite id="5zmnc"></cite></del><button id="5zmnc"><style id="5zmnc"><meter id="5zmnc"><noframes id="5zmnc"></noframes></meter></style></button><track id="5zmnc"></track><thead id="5zmnc"><sup id="5zmnc"><menu id="5zmnc"><legend id="5zmnc"></legend></menu></sup></thead><menuitem id="5zmnc"><abbr id="5zmnc"></abbr></menuitem><legend id="5zmnc"></legend><sub id="5zmnc"><label id="5zmnc"></label></sub></div></html>