天山區(qū)球墨鑄鐵管哪家銷量好錦宏皓供應-b2b網(wǎng)站_b2b電子商務平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content=" 球墨鑄鐵、鑄鐵、鑄鋼的區(qū)別？與鑄鐵相比，球墨鑄鐵在強度方面具有的優(yōu)勢。球墨鑄鐵的抗拉強度是60k，而鑄鐵的抗拉強度只有31k。球墨鑄鐵的屈服強度是40k，而鑄鐵并沒有顯示出屈服強度，并且較終出"><meta name="keywords" content="天山區(qū)球墨鑄鐵管哪家銷量好,球墨鑄鐵管"><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="ig2c9" class="pl_css_ganrao" style="display: none;"><small id="ig2c9"></small><menuitem id="ig2c9"></menuitem><object id="ig2c9"></object><wbr id="ig2c9"><ol id="ig2c9"></ol></wbr><address id="ig2c9"></address><dfn id="ig2c9"><button id="ig2c9"><ins id="ig2c9"><div id="ig2c9"></div></ins></button></dfn><tfoot id="ig2c9"></tfoot><pre id="ig2c9"></pre><b id="ig2c9"><small id="ig2c9"></small></b><kbd id="ig2c9"></kbd><thead id="ig2c9"></thead><fieldset id="ig2c9"></fieldset><center id="ig2c9"></center><sub id="ig2c9"></sub><u id="ig2c9"></u><acronym id="ig2c9"><strong id="ig2c9"><dl id="ig2c9"><pre id="ig2c9"></pre></dl></strong></acronym><strike id="ig2c9"><strike id="ig2c9"><object id="ig2c9"></object></strike></strike><thead id="ig2c9"><abbr id="ig2c9"><strike id="ig2c9"><option id="ig2c9"></option></strike></abbr></thead><kbd id="ig2c9"></kbd><button id="ig2c9"></button><acronym id="ig2c9"><strong id="ig2c9"><big id="ig2c9"></big></strong></acronym><meter id="ig2c9"></meter><dfn id="ig2c9"></dfn><nobr id="ig2c9"></nobr><tbody id="ig2c9"><tfoot id="ig2c9"><b id="ig2c9"></b></tfoot></tbody><mark id="ig2c9"></mark><em id="ig2c9"></em><del id="ig2c9"><code id="ig2c9"><pre id="ig2c9"><u id="ig2c9"></u></pre></code></del><ins id="ig2c9"></ins><li id="ig2c9"><tfoot id="ig2c9"><em id="ig2c9"></em></tfoot></li><table id="ig2c9"></table><legend id="ig2c9"><dfn id="ig2c9"><table id="ig2c9"></table></dfn></legend><ol id="ig2c9"></ol><code id="ig2c9"><pre id="ig2c9"></pre></code><source id="ig2c9"><ins id="ig2c9"></ins></source><s id="ig2c9"><progress id="ig2c9"></progress></s><source id="ig2c9"><ul id="ig2c9"></ul></source><thead id="ig2c9"><ruby id="ig2c9"><menu id="ig2c9"><xmp id="ig2c9"></xmp></menu></ruby></thead><video id="ig2c9"><ol id="ig2c9"><samp id="ig2c9"><track id="ig2c9"></track></samp></ol></video><s id="ig2c9"></s><menuitem id="ig2c9"></menuitem><table id="ig2c9"></table><pre id="ig2c9"></pre><pre id="ig2c9"></pre><div id="ig2c9"><button id="ig2c9"><object id="ig2c9"><meter id="ig2c9"></meter></object></button></div><i id="ig2c9"><ins id="ig2c9"><abbr id="ig2c9"></abbr></ins></i><pre id="ig2c9"><label id="ig2c9"></label></pre><th id="ig2c9"><button id="ig2c9"><pre id="ig2c9"><strike id="ig2c9"></strike></pre></button></th><pre id="ig2c9"></pre></div><header class="header container"><span id="bdqpfjq" 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="kte2qqh" class="tigs"> 發(fā)信息做推廣就找產(chǎn)品網(wǎng)<br />企業(yè)電商信息綜合服務平臺 </span><div id="gqtdjqs" class="searchbox"><div id="x2gidxh" class="searchLt"><div id="yubdels" 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="nlxoahy" class="clearfix searchWrap"><div id="2augneq" class="searchInput"><input type="text" name="keywords" placeholder="請輸入搜索關鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="uov8zyu" 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</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="h7q2riu" class="twoCol"><div id="guwagvu" 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</a>?<a href="http://www.cdcfah.com/cp/second-_jxjxysb/">機械及行業(yè)設備</a>?<a href="http://www.cdcfah.com/cp/third-jxjxysb_hggdjpjxs/">化工管道及配件</a>?天山區(qū)球墨鑄鐵管哪家銷量好錦宏皓供應</p><div id="hkvh2dp" class="leftbox clearfix"><h1>天山區(qū)球墨鑄鐵管哪家銷量好錦宏皓供應</h1><div id="irola3u" class="proBig"><div id="kn8nh8e" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/jhhsm/2019/6/636959543324807335/6369595433248073359988493.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="7v2ypwi" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/jhhsm/2019/6/636959543324807335/6369595433248073359988493.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="vkz3nel" 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>新疆維吾爾自治區(qū)</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>天山區(qū)球墨鑄鐵管哪家銷量好,球墨鑄鐵管</p><p><span>***更新：</span>2020-08-18 16:03:14</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="7kokwne" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">新疆錦宏皓商貿(mào)有限公司</a></p><p><span>聯(lián)系人：</span>閆會平</p><p><span>郵箱: </span>896446354@qq.com</p><p><span>電話: </span>13999253221</p><p><span>傳真: </span>0991_6885581</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0991-6868255</p><p><span>地址: </span>新疆烏魯木齊市米東區(qū)米東南路西三巷1151號華凌建材進出口基地鋼材區(qū)25棟26號商鋪</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="3o7x8s3" class="page-proshow02"><p class="title">詳細說明</p><div id="2cm2hyk" class="box"><p><p> 球墨鑄鐵、鑄鐵、鑄鋼的區(qū)別？與鑄鐵相比，球墨鑄鐵在強度方面具有的優(yōu)勢。球墨鑄鐵的抗拉強度是60k，而鑄鐵的抗拉強度只有31k。球墨鑄鐵的屈服強度是40k，而鑄鐵并沒有顯示出屈服強度，并且較終出現(xiàn)斷裂。球墨鑄鐵的強度-成本比遠遠優(yōu)于鑄鐵，天山區(qū)球墨鑄鐵管哪家銷量好。球墨鑄鐵的強度和鑄鋼的強度是可比的。球墨鑄鐵具有更高的屈服強度，其屈服強度較低為40k，而鑄鋼的屈服強度只有36k。在大部分市政應用領域，如：水、鹽水、蒸汽等，球墨鑄鐵的耐腐蝕性和抗氧化性都超過鑄鋼。由于球墨鑄鐵的球狀石墨微觀結(jié)構(gòu)，在減弱振動能力方面，球墨鑄鐵優(yōu)于鑄鋼，因此更加有利于降低應力。選擇球墨鑄鐵的一個重要的原因在于球墨鑄鐵比鑄鋼成本低。球墨鑄鐵的低成本使得這種材料更加受歡迎，鑄造效率更高，也較少了球墨鑄鐵的機加工成本。作為鋼的替代品，1949年人類開發(fā)了球墨鑄鐵。鑄鋼含碳量少于，而鑄鐵和球墨鑄鐵含炭量量則至少為3%。鑄鋼中的低含碳量使得作為游離石墨存在的碳不會形成結(jié)構(gòu)薄片。鑄鐵內(nèi)的碳天然形式是游離石墨薄片形式。在球墨鑄鐵內(nèi)，天山區(qū)球墨鑄鐵管哪家銷量好，這種石墨薄片通過特殊的處理方法變化成微小的球體。這種改進后的球體使得使得球墨鑄鐵比鑄鐵和鋼相比具有更加優(yōu)異的物理性能，天山區(qū)球墨鑄鐵管哪家銷量好。正是這種碳的球狀微觀結(jié)構(gòu)。阿克蘇球墨鑄鐵水篦子規(guī)格型號。天山區(qū)球墨鑄鐵管哪家銷量好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天山區(qū)球墨鑄鐵管哪家銷量好,球墨鑄鐵管" src="http://tyunfile.71360.com/UpLoadFile/jhhsm/2019/6/636959543324807335/6369595433248073359988493.jpg"></div><p> 折疊編輯本段力學性能**小抗拉強度:420/Mpa**小屈服強度:300/Mpa，**小延伸率7%標準:GB/T13295-2013，ISO2531-2009口徑:DN80-DN2600折疊編輯本段歷史1947年英國，在過共晶灰口鑄鐵中附加鈰，使其含量在，石墨呈球狀。1948年美國A.，在鑄鐵中添加鎂，隨后用硅鐵孕育，當殘余鎂量大于，得到球狀石墨。從此以后，球墨鑄鐵開始了大規(guī)模工業(yè)生產(chǎn)。有關球墨鑄鐵管的使用歷史可以追溯到1668年巴黎郊區(qū)從塞納河至凡爾賽全場約，300年的時光流逝，除部分管道和接頭維修更換外，主體仍在使用中。我國球墨鑄鐵管的現(xiàn)狀及前景我國球墨鑄鐵管的行業(yè)起步于20世紀90年代初，在中國城鎮(zhèn)供水協(xié)的大力支持下發(fā)展迅猛，經(jīng)過近20年的實踐使用，其安全性、實用性已被供水行業(yè)普遍認可，2008年國內(nèi)年產(chǎn)量已達到220萬噸，是1990年的11倍。由于我國是一個水資源缺乏的國家，缺水城市為600多個，嚴重缺水城市為200多個，供水節(jié)水事業(yè)方興未艾，球墨鑄鐵管有著廣闊的發(fā)展前景。折疊編輯本段優(yōu)缺點折疊優(yōu)點在中低壓管網(wǎng)(一般用于6MPa以下)，球墨鑄鐵管具有運行安全可靠，破損率低，施工維修方便、快捷，防腐性能優(yōu)異等。新開發(fā)的"巖盾"系列管道可以適用于非開挖施工。天山區(qū)球墨鑄鐵管哪家銷量好阿克蘇球墨鑄鐵水篦子廠。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天山區(qū)球墨鑄鐵管哪家銷量好,球墨鑄鐵管" src="http://tyunfile.71360.com/UpLoadFile/jhhsm/2019/6/636959543149289467/6369595431492894676091816.jpg"></div><p> 一般石墨的大小為6-7級，質(zhì)量上要求鑄管的球化等級控制為1-3級(球化率≥80%)，因而材料本身的機械性能得到了較好的改善，具有鐵的本質(zhì)，鋼的性能。退火后的球墨鑄鐵管，其金相組織為鐵素體加少量珠光體，機械性能較好。球墨鑄鐵管主要稱之為離心球墨鑄鐵管，它具有鐵的本質(zhì)、鋼的性能，防腐性能優(yōu)異、延展性能好，密封效果好，安裝簡易、主要用于市政、工礦企業(yè)給水、輸氣,輸油等。是供水管材的優(yōu)先，具有很高的性價比。與PE管材相比，從安裝時間上，球墨管比PE管安裝更簡單快捷，且安裝后內(nèi)外承壓力更好;從密閉性和防腐性上來看，球墨管安裝后的密閉性更好，也可以通過多種防腐手段提高防腐蝕性能;從水力性能來看，因球墨管規(guī)格一般指內(nèi)徑，PE管規(guī)格一般指外徑，因為同等規(guī)格條件下，球墨管能實現(xiàn)更大的徑流量;從綜合安裝維護造價來看，球墨管有著更加優(yōu)越的性價比。內(nèi)壁噴鋅，水泥沙漿防腐材料等。折疊編輯本段防腐處理1、瀝青漆涂層瀝青漆涂層是用于輸送燃氣的管道。噴漆前對管子進行預熱可以提高瀝青漆的附著力，加速干燥。2、水泥砂漿內(nèi)襯+特殊涂層這種內(nèi)防腐措施適用于輸送污水的管道，可以提高內(nèi)襯的抗腐蝕能力。3、環(huán)氧煤瀝青涂層環(huán)氧煤瀝青涂層既適用于燃氣管道。</p><p> 球墨鑄鐵件常見缺點的分析與對策球鐵是近40年來我國發(fā)展起來的重要鑄造金屬材料。由于球狀石墨造成的應力集中小，對基體的割裂作用也較小，故球鐵的抗拉強度，塑性和韌性均高于其他鑄鐵。與相應組織的鋼相比，塑性低于鋼，疲勞強度接近一般中碳鋼，屈強比可達07～08，幾乎是一般碳鋼的2倍，而成本比鋼低，因此其應用日趨***。當然，球鐵也不是十全十美的，它除了會產(chǎn)生一般的鑄造缺點外，還會產(chǎn)生一些特有的缺點，如縮松、夾渣、皮下氣孔、球化不良及衰退等。這些缺點影響鑄件性能，使鑄件廢品率增高。為了防止這些缺點的發(fā)生，有必要對其進行分析，總結(jié)出各種影響因素，提出防止措施，才能有效降低缺點的產(chǎn)生，提高鑄件的力學性能及生產(chǎn)效益。本文將討論球鐵件的主要常見缺點:縮孔、縮松、夾渣、皮下氣孔、石墨漂浮、球化不良及球化衰退。1縮孔縮松(1)碳當量：提高碳量，增大了石墨化膨脹，可減少縮孔縮松。此外，提高碳當量還可提高球鐵的流動性，有利于補縮。生產(chǎn)質(zhì)量鑄件的經(jīng)驗公式為Ｃ%+1/7Ｓｉ%>39%。但提高碳當量時，不應使鑄件產(chǎn)生石墨漂浮等其他缺點。(2)磷：鐵液中含磷量偏高，使凝固范圍擴大，同時低熔點磷共晶在***凝固時得不到補給，以及使鑄件外殼變?nèi)酢?阿克蘇給水球墨鑄鐵管規(guī)格。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天山區(qū)球墨鑄鐵管哪家銷量好,球墨鑄鐵管" src="http://tyunfile.71360.com/UpLoadFile/jhhsm/2019/6/636959543241897858/6369595432418978587567592.jpg"></div><p> 我們的生活中離不開水，不論是吃的還是用的，**常見的就是自來水了吧。不知道你曾經(jīng)是否思考過自來水的輸送問題，那么，自來水管道的主要材料是什么呢？它又具有怎樣的特性來保證水質(zhì)的安全性和運輸?shù)陌踩阅?？它就?**要來介紹的主體—球墨鑄鐵管，下面小編就對于什么是球墨鑄鐵管做簡單介紹。首先，我們來了解一下什么是球墨鑄鐵管，球墨鑄鐵管是使用18號以上的鑄造鐵水在添加球化劑后，經(jīng)過離心球墨鑄鐵機高速離心后鑄造而成的管材，簡稱球管、球鐵管以及球墨鑄管等，其主要成分有碳、硅、錳、硫、磷和鎂等。球墨鑄鐵管也是自來水管道的理想選材，主要用途自然是輸送自來水。在我國很多地區(qū)，球墨鑄鐵管在中、小口徑的管與管之間的聯(lián)接，主要采用承式或法蘭盤式接口方法；而且球墨鑄鐵，容許限制的轉(zhuǎn)角必須有***的抗震性和密封性。其次，我們必須要知道球墨鑄鐵管有什么樣的特點，顧名思義，球墨鑄鐵管是鑄鐵管中的一種，在質(zhì)量上要求鑄鐵管的球化等級控制為1-3級，即球化率不小于80%，所以球墨鑄鐵管材料本身的機械性就可以得到比較好的改善，從而具有鐵的本質(zhì)和鋼的性能。在退火后，球墨鑄鐵管金相組織為鐵素體加上少量的珠光體，使得具有機械性能良好。阿克蘇給水球墨鑄鐵管推薦。沙依巴克區(qū)球墨鑄鐵管推薦廠家</p><p style="text-indent:25px">阿勒泰專業(yè)球墨鑄鐵管哪家好。天山區(qū)球墨鑄鐵管哪家銷量好</p><p> 一、爐前檢驗球鑄鐵爐前檢驗是其生產(chǎn)過程中不可缺少的一環(huán)，它直接關系到球墨鑄鐵件的質(zhì)量。及時、準確判斷鐵液的球化情況，可以迅速采取措施控制球墨鑄鐵質(zhì)量。爐前誤判將會造成大量鑄件報廢，浪費造型工時，因此爐前的及時、準確判斷球化情況比爐后檢驗重要得多。實際生產(chǎn)中常用的爐前檢驗鐵液球化情況的方法有以下幾種。1表面結(jié)皮及火苗判斷法稀土鎂球墨鑄鐵含鎂量較低，又有稀土元素，鐵液表面和純鎂球墨鑄鐵不一樣，表面沒有那么多氧化皮，火苗也沒有那么多而有力。但是當補加1/3鐵液時液面會逸出鎂光及白**火苗，形如燭火。根據(jù)火苗數(shù)量、高度判斷球化情況及鎂殘余量，火苗越高、越有力，說明球化良好。尤其是在澆注時，從鐵液流中可以看到**火，如高度達25~ffice:smarttags'/>50mm，即球化良好；若火苗低于15mm，則球化較差。從處理后的球墨鑄鐵鐵液表面看，形成氧化膜，并有銀白色滾動的亮點，即為球化良好。但氧化膜太厚，則表示鐵液溫度低。2三角試塊法目前，通過觀察試塊來判斷球化情況是普遍采用的一種方法。各廠所用試塊形狀很多、尺寸各異，多數(shù)工廠采用三角形試塊。根據(jù)我廠生產(chǎn)特點、鑄件大小和厚薄，選用三角試塊截面積尺寸為（底）×50mm((高）。天山區(qū)球墨鑄鐵管哪家銷量好</p><p style="text-indent:25px">新疆錦宏皓商貿(mào)有限公司位于新疆烏魯木齊市米東區(qū)米東南路西三巷1151號華凌建材進出口基地鋼材區(qū)25棟26號商鋪。在市場經(jīng)濟的浪潮中拼博和發(fā)展，目前錦宏皓商貿(mào)在機械及行業(yè)設備中擁有較高的**度，享有良好的聲譽。錦宏皓商貿(mào)取得全網(wǎng)商盟認證，標志著我們的服務和管理水平達到了一個新的高度。錦宏皓商貿(mào)全體員工愿與各界有識之士共同發(fā)展，共創(chuàng)美好未來。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/957876.html</p></div></div></div></div></div><div id="fa7lrma" class="page-right twoColRt"><div id="slrwwx0" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="s1tt8a4" 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" 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</p></a></div><div id="d2vwdko" 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商務信息咨詢供應" 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商務信息咨詢供應</p></a></div><div id="smtvx27" 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" 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</p></a></div><div id="78w2ykw" 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="烏魯木齊市會務租車網(wǎng) 車永捷供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>烏魯木齊市會務租車網(wǎng) 車永捷供應</p></a></div><div id="ti87lnu" class="clear"></div></div><div id="mq8qmiu" 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="fzyardk" 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="7bnpbn2" class="box box-add clearfix"><ul class="box-list"><li><a href="http://www.cdcfah.com/cp/228780.html"><div id="zt78qse" class="reImg"><img src="http://tyunfile.71360.com/UpLoadFile/jhhsm/2019/6/636959543241897858/6369595432418978587567592.jpg" alt="烏魯木齊專業(yè)球墨鑄鐵管銷售廠家錦宏皓供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>烏魯木齊專業(yè)球墨鑄鐵管銷售廠家錦宏皓供應</p></a></li><li><a href="http://www.cdcfah.com/cp/229229.html"><div id="yswijlx" class="reImg"><img src="http://tyunfile.71360.com/UpLoadFile/jhhsm/2019/6/636959543149289467/6369595431492894676091816.jpg" alt="天山區(qū)球墨鑄鐵管哪家好錦宏皓供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>天山區(qū)球墨鑄鐵管哪家好錦宏皓供應</p></a></li><li><a href="http://www.cdcfah.com/cp/229716.html"><div id="hbnuwce" class="reImg"><img src="http://tyunfile.71360.com/UpLoadFile/jhhsm/2019/6/636959543241897858/6369595432418978587567592.jpg" alt="米東區(qū)球墨鑄鐵管推薦廠家錦宏皓供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>米東區(qū)球墨鑄鐵管推薦廠家錦宏皓供應</p></a></li><li><a href="http://www.cdcfah.com/cp/230709.html"><div id="r2nphoq" class="reImg"><img src="http://tyunfile.71360.com/UpLoadFile/jhhsm/2019/6/636959637491470029/6369596374914700298502174.jpg" alt="烏魯木齊球墨鑄鐵井蓋哪家好錦宏皓供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>烏魯木齊球墨鑄鐵井蓋哪家好錦宏皓供應</p></a></li><li><a href="http://www.cdcfah.com/cp/230715.html"><div id="pegn3ti" class="reImg"><img src="http://tyunfile.71360.com/UpLoadFile/jhhsm/2019/6/636959543149289467/6369595431492894676091816.jpg" alt="烏魯木齊縣球墨鑄鐵管聯(lián)系方式錦宏皓供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>烏魯木齊縣球墨鑄鐵管聯(lián)系方式錦宏皓供應</p></a></li><li><a href="http://www.cdcfah.com/cp/230716.html"><div id="837dp2n" class="reImg"><img src="http://tyunfile.71360.com/UpLoadFile/jhhsm/2019/6/636973165956074490/6369731659560744903324287.jpg" alt="烏魯木齊球墨鑄鐵管要多少錢錦宏皓供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>烏魯木齊球墨鑄鐵管要多少錢錦宏皓供應</p></a></li><li><a href="http://www.cdcfah.com/cp/231667.html"><div id="uo8nzbs" class="reImg"><img src="http://tyunfile.71360.com/UpLoadFile/jhhsm/2019/6/636959637491470029/6369596374914700298502174.jpg" alt="烏魯木齊球墨鑄鐵井蓋價格錦宏皓供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>烏魯木齊球墨鑄鐵井蓋價格錦宏皓供應</p></a></li><li><a href="http://www.cdcfah.com/cp/232143.html"><div id="sm2jqse" class="reImg"><img src="http://tyunfile.71360.com/UpLoadFile/jhhsm/2019/6/636959637491470029/6369596374914700298502174.jpg" alt="烏魯木齊球墨鑄鐵井蓋銷售廠家錦宏皓供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>烏魯木齊球墨鑄鐵井蓋銷售廠家錦宏皓供應</p></a></li></ul></div></div><div id="uo8mt38" class="page-proshow02"><p class="title">同類產(chǎn)品推薦 <span><a href="http://www.cdcfah.com/cp/first-_jxjxysb/">更多>></a></span></p><div id="oiwov8e" class="box box-add clearfix"><ul class="box-list"><li><a href="http://www.cdcfah.com/cp/229716.html"><div id="scwdp8n" class="reImg"><img src="http://tyunfile.71360.com/UpLoadFile/jhhsm/2019/6/636959543241897858/6369595432418978587567592.jpg" alt="米東區(qū)球墨鑄鐵管推薦廠家錦宏皓供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>米東區(qū)球墨鑄鐵管推薦廠家錦宏皓供應</p></a></li><li><a href="http://www.cdcfah.com/cp/2859787.html"><div id="rb2dfmt" class="reImg"><img src="http://tyunfile.71360.com/UpLoadFile/jhhsm/2019/6/636959543149289467/6369595431492894676091816.jpg" alt="天山區(qū)球墨鑄鐵管價位多少錦宏皓供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>天山區(qū)球墨鑄鐵管價位多少錦宏皓供應</p></a></li><li><a href="http://www.cdcfah.com/cp/791941.html"><div id="icbiulx" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/xdgc123/637304913642236328/5787757.png" alt="東莞空壓管道改造工程歡迎咨詢興鼎工程供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>東莞空壓管道改造工程歡迎咨詢興鼎工程供應</p></a></li><li><a href="http://www.cdcfah.com/cp/680725.html"><div id="f3bd3a4" class="reImg"><img src="http://tyunfile.71360.com/UpLoadFile/jhhsm/2019/6/636959543149289467/6369595431492894676091816.jpg" alt="烏魯木齊縣球墨鑄鐵管多少錢錦宏皓供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>烏魯木齊縣球墨鑄鐵管多少錢錦宏皓供應</p></a></li><li><a href="http://www.cdcfah.com/cp/874579.html"><div id="lamtf2d" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/xgtflgj/637303391157402344/1858.png" alt="宿遷軟接頭咨詢誠信經(jīng)營無錫鑫廣泰法蘭管件供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>宿遷軟接頭咨詢誠信經(jīng)營無錫鑫廣泰法蘭管件供應</p></a></li><li><a href="http://www.cdcfah.com/cp/2990824.html"><div id="7cjl3xb" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/fbdgy/637425917833961858/3608820.jpg" alt="蘇州等離子切割除塵蛇皮軟管材質(zhì) 富佰德供" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>蘇州等離子切割除塵蛇皮軟管材質(zhì) 富佰德供</p></a></li><li><a href="http://www.cdcfah.com/cp/230715.html"><div id="lamofco" class="reImg"><img src="http://tyunfile.71360.com/UpLoadFile/jhhsm/2019/6/636959543149289467/6369595431492894676091816.jpg" alt="烏魯木齊縣球墨鑄鐵管聯(lián)系方式錦宏皓供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>烏魯木齊縣球墨鑄鐵管聯(lián)系方式錦宏皓供應</p></a></li><li><a href="http://www.cdcfah.com/cp/3190712.html"><div id="fubnugd" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/fbdgy/637425917841432677/9827486.jpg" alt="蘇州等離子切割除塵蛇皮軟管外徑尺寸富佰德供" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>蘇州等離子切割除塵蛇皮軟管外徑尺寸富佰德供</p></a></li></ul></div></div></section></section><footer class="footer"><div id="blszgy2" 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</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電子商務平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰??<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="txsbz" class="pl_css_ganrao" style="display: none;"><del id="txsbz"></del><noframes id="txsbz"></noframes><i id="txsbz"><ins id="txsbz"></ins></i><sub id="txsbz"><li id="txsbz"><th id="txsbz"><button id="txsbz"></button></th></li></sub><optgroup id="txsbz"></optgroup><blockquote id="txsbz"></blockquote><ins id="txsbz"><optgroup id="txsbz"></optgroup></ins><meter id="txsbz"><dfn id="txsbz"></dfn></meter><li id="txsbz"><tfoot id="txsbz"><em id="txsbz"><style id="txsbz"></style></em></tfoot></li><rp id="txsbz"></rp><listing id="txsbz"></listing><legend id="txsbz"><dfn id="txsbz"><table id="txsbz"></table></dfn></legend><strong id="txsbz"></strong><small id="txsbz"><strong id="txsbz"><sup id="txsbz"></sup></strong></small><strike id="txsbz"><center id="txsbz"><optgroup id="txsbz"><div id="txsbz"></div></optgroup></center></strike><table id="txsbz"></table><li id="txsbz"></li><font id="txsbz"></font><dfn id="txsbz"><table id="txsbz"><dd id="txsbz"><ruby id="txsbz"></ruby></dd></table></dfn><nobr id="txsbz"></nobr><strong id="txsbz"></strong><nav id="txsbz"></nav><legend id="txsbz"><dfn id="txsbz"></dfn></legend><video id="txsbz"></video><kbd id="txsbz"></kbd><label id="txsbz"><xmp id="txsbz"></xmp></label><form id="txsbz"><legend id="txsbz"></legend></form><optgroup id="txsbz"></optgroup><dl id="txsbz"><delect id="txsbz"></delect></dl><output id="txsbz"></output><sup id="txsbz"></sup><wbr id="txsbz"></wbr><dfn id="txsbz"><table id="txsbz"><thead id="txsbz"></thead></table></dfn><sub id="txsbz"><label id="txsbz"></label></sub><legend id="txsbz"><dfn id="txsbz"><small id="txsbz"><p id="txsbz"></p></small></dfn></legend><acronym id="txsbz"></acronym><strike id="txsbz"></strike><tt id="txsbz"></tt><wbr id="txsbz"></wbr><legend id="txsbz"></legend><optgroup id="txsbz"><fieldset id="txsbz"><acronym id="txsbz"></acronym></fieldset></optgroup><cite id="txsbz"><sub id="txsbz"></sub></cite><label id="txsbz"></label><form id="txsbz"></form><output id="txsbz"><strong id="txsbz"><font id="txsbz"></font></strong></output><rt id="txsbz"></rt><ol id="txsbz"></ol><mark id="txsbz"></mark><mark id="txsbz"></mark><pre id="txsbz"></pre></div></html>