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id="su2m2qmw88" class="desc">ETCR2000鉗形接地電阻測(cè)試儀，接地電阻和回路電阻測(cè)量（量程：0.010Ω~200Ω）。在測(cè)量有回路的接地系統(tǒng)時(shí)，不需斷開(kāi)接地引下線(xiàn)，不需輔助電極，只需把鉗表直接鉗在接地引下線(xiàn)上即可，此時(shí)鉗表顯示值是接地體電阻和接地引線(xiàn)電阻的綜合值，該測(cè)量方法能快速、安全的得出測(cè)量結(jié)果。</div> </p></p> </div>  <div id="su2m2qmw88" class="x-1"> <div id="su2m2qmw88" class="b-1">產(chǎn)品特性<span>Product characteristics</span></div> <link type="text/css" rel="stylesheet" href="/css/property.css"> <script> window.onload=function(){ changeTableHeight(); } window.onresize=function(){ changeTableHeight(); } function changeTableHeight(){ $(".proshowParameter table th").each(function?(i,o){ ????var $this=$(o),? ????height=$this.next().height(); ????$(this).css("height",height); var obj = $(o); var val = obj.text(); if(val == '' || val == null || val == undefined){ $(this).addClass('none'); }else{ $(this).removeClass('none'); } }); $(".proshowParameter table td").each(function?(i,o){ var obj = $(o); var val = obj.text(); if(val == '' || val == null || val == undefined){ $(this).addClass('none'); }else{ $(this).removeClass('none'); } }); } </script> <section class="proshowParameter"> <table style=" margin-bottom:20px;"> <tbody> <tr><th>品牌</th><td>KD/康登</td><th>產(chǎn)地類(lèi)別</th><td>國(guó)產(chǎn)</td></tr><tr><th>類(lèi)型</th><td>數(shù)字式電阻測(cè)試儀</td><th>測(cè)量范圍</th><td>0.010Ω~1000ΩMΩ</td></tr><tr><th>電源</th><td>5號(hào)電池（LR6）x4節(jié)</td><th>測(cè)試電壓</th><td>150vV</td></tr><tr><th>精度</th><td>±1%</td><th>重復(fù)誤差</th><td>±0.01Ω*</td></tr><tr><th>環(huán)境溫度</th><td>35</td><th>相對(duì)濕度</th><td>85</td></tr><tr><th>校準(zhǔn)周期</th><td>3</td><th>尺寸</th><td>285mm×85mm×56mmkg</td></tr><tr><th>重量</th><td>1160gkg</td><th>應(yīng)用領(lǐng)域</th><td>醫(yī)療衛(wèi)生,環(huán)保,石油,電子,交通</td></tr> </tbody> </table> </section><p><span style="font-size: 16px; background-color: rgb(255, 255, 255); color: rgb(63, 63, 63); font-family: 微軟雅黑, sans-serif;">ETCR2000<strong>鉗形接地電阻測(cè)試儀</strong>，接地電阻和回路電阻測(cè)量（量程：0.010Ω~1000Ω）。在測(cè)量有回路的接地系統(tǒng)時(shí)，不需斷開(kāi)接地引下線(xiàn)，不需輔助電極，只需把鉗表直接鉗在接地引下線(xiàn)上即可，此時(shí)鉗表顯示值是接地體電阻和接地引線(xiàn)電阻的綜合值，該測(cè)量方法能快速、安全的得出測(cè)量結(jié)果。</span></p><p><span style="font-size: 16px;">ETCR2000<strong>鉗形接地電阻測(cè)試儀</strong><span style="font-size: 16px; color: rgb(63, 63, 63); font-family: 微軟雅黑, sans-serif;">能測(cè)量出用傳統(tǒng)方法無(wú)法測(cè)量的接地故障，能應(yīng)用于傳統(tǒng)方法無(wú)法測(cè)量的場(chǎng)合，并且廣泛應(yīng)用于各種設(shè)備的接地電阻測(cè)量。</span></span></p><p><span style="color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif"></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: Tahoma;"><span style="font-size: 16px; margin: 0px;"><strong style="margin: 0px;"><span>ETCR2000</span><strong style="white-space: normal;">鉗形接地電阻測(cè)試儀</strong>現(xiàn)場(chǎng)應(yīng)用</strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: 宋體, Tahoma, Arial;"><span style="color: rgb(63, 63, 63); font-size: 16px; margin: 0px;">當(dāng)使用</span><span style="font-size: 16px; margin: 0px;">ETCR2000系列鉗形表</span><span style="color: rgb(63, 63, 63); font-size: 16px; margin: 0px;">( 以下簡(jiǎn)稱(chēng)鉗形表) 進(jìn)行測(cè)試時(shí)，對(duì)于有雙接地引下線(xiàn)的線(xiàn)路桿塔，連通圖如圖1，該法實(shí)際上測(cè)量的是回路的導(dǎo)通電阻。測(cè)試回路導(dǎo)通電阻時(shí)，回路中包含有接地網(wǎng)回路的導(dǎo)通電阻、接地引下線(xiàn)的電阻、桿塔本身的導(dǎo)通電阻。因而桿塔本身的狀態(tài)也會(huì)影響鉗形表的測(cè)試結(jié)果。需要注意的是，引下線(xiàn)與大地的接觸電阻、桿塔本身接地引下線(xiàn)處涂防腐漆等也是影響回路導(dǎo)通電阻的影響因素。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: 宋體, Tahoma, Arial;"><br/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: 宋體, Tahoma, Arial;"><br/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: 宋體, Tahoma, Arial; text-align: center;"><img alt="輸電線(xiàn)路桿塔接地網(wǎng)導(dǎo)通電阻測(cè)試圖桿塔接地" data-bd-imgshare-binded="1" src="https://img67.chem17.com/gxhpic_884f2b1889/969b59aaf9fc955b06f8144098bfcdee5c21c2dc0e8ed0738692e62de62cc692a6fbac4787d85fad.png" style="margin: 0px; padding: 0px; border: 0px; max-width: 100%; max-height: 100%; vertical-align: top; height: 236px; width: 370px;"/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: 宋體, Tahoma, Arial; text-align: center;"><span style="color: rgb(63, 63, 63); font-size: 16px; margin: 0px;">圖1 輸電線(xiàn)路桿塔接地網(wǎng)導(dǎo)通電阻測(cè)試圖</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: 宋體, Tahoma, Arial;"><span style="color: rgb(63, 63, 63); font-size: 16px; margin: 0px;">若2 根引下線(xiàn)有1 根斷開(kāi)或者是單接地引下線(xiàn)<span style="font-family: " microsoft="" margin:="">的線(xiàn)路桿塔，則引下線(xiàn)可以通過(guò)避雷線(xiàn)和其他桿塔地網(wǎng)與本塔地網(wǎng)構(gòu)成回路，此時(shí)測(cè)量的是接地電阻。如圖2。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: 宋體, Tahoma, Arial; text-align: center;"><span style="color: rgb(63, 63, 63); font-family: " microsoft="" font-size:="" margin:=""><img alt="輸電線(xiàn)路接地電阻測(cè)試原理圖" data-bd-imgshare-binded="1" src="https://img67.chem17.com/gxhpic_884f2b1889/969b59aaf9fc955b06f8144098bfcdeefc43d4b14185c73df43b6bd0f1ec37cb003de416830d0a83.png" style="margin: 0px; padding: 0px; border: 0px; max-width: 100%; max-height: 100%; vertical-align: top; height: 239px; width: 473px;"/></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: 宋體, Tahoma, Arial; text-align: center;"><span style="color: rgb(63, 63, 63); font-family: " microsoft="" font-size:="" margin:="">圖2 輸電線(xiàn)路接地電阻測(cè)試原理圖</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: 宋體, Tahoma, Arial; text-align: center;"><span style="color: rgb(63, 63, 63); font-family: " microsoft="" font-size:="" margin:=""><img alt="鉗形表測(cè)量線(xiàn)路桿塔接地電阻等值電路圖" data-bd-imgshare-binded="1" src="https://img67.chem17.com/gxhpic_884f2b1889/969b59aaf9fc955b06f8144098bfcdee1e1dcee87cb5d95b6d16e3f1b5b9992cd5e3c058382a1763.png" style="margin: 0px; padding: 0px; border: 0px; max-width: 100%; max-height: 100%; vertical-align: top; height: 157px; width: 473px;"/></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: 宋體, Tahoma, Arial; text-align: center;"><span style="color: rgb(63, 63, 63); font-family: " microsoft="" font-size:="" margin:="">圖3 鉗形表測(cè)量線(xiàn)路桿塔接地電阻等值電路圖</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: 宋體, Tahoma, Arial;"><span style="color: rgb(63, 63, 63); font-family: " microsoft="" font-size:="" margin:="">圖3則為利用鉗形表測(cè)量輸電線(xiàn)路桿塔接地阻抗其中R1+jXg 為欲測(cè)桿塔的接地阻抗。在接地電阻的測(cè)試回路中，還包含有避雷器阻抗( Z = R+jX) 和桿塔之間電阻的互阻抗( 在接地回路正常的情況下很小) 以及其它桿塔的接地電阻并聯(lián)后的等效電阻。根據(jù)鉗形表的測(cè)試原理，實(shí)際上鉗形表測(cè)試出的電阻就是上述4 個(gè)數(shù)值的和。所以一般來(lái)講，其測(cè)試數(shù)值是大于ZC-8 接地?fù)u表數(shù)值的。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: 宋體, Tahoma, Arial;"><br/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: 宋體, Tahoma, Arial;"><span style="color: rgb(63, 63, 63); font-size: 16px; margin: 0px;">分別用鉗形表和接地?fù)u表對(duì)湖南省內(nèi)100多處基<span style="font-family: " microsoft="" margin:="">涉及不同電壓等級(jí)的輸電線(xiàn)路桿塔的接地電阻和接地導(dǎo)通電阻進(jìn)行了測(cè)量，通過(guò)大量現(xiàn)場(chǎng)試驗(yàn)發(fā)現(xiàn): 鉗形表測(cè)量的接地電阻一般較接地?fù)u表測(cè)量結(jié)果偏大，誤差一般小于1 Ω。而鉗形表的導(dǎo)通電阻測(cè)量結(jié)果為接地?fù)u表的8 ～ 10 倍。從2 種測(cè)試儀器的測(cè)試數(shù)據(jù)來(lái)看: 鉗形表測(cè)量的導(dǎo)通電阻包含有接地網(wǎng)回路的導(dǎo)通電阻、接地引下線(xiàn)的電阻、桿塔本身的導(dǎo)通電阻。而接地?fù)u表僅測(cè)試部分引下線(xiàn)和接地網(wǎng)回路的導(dǎo)通電阻值。因而鉗形表測(cè)試數(shù)據(jù)遠(yuǎn)較接地?fù)u表測(cè)試導(dǎo)通電阻大，但是更為實(shí)用。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: 宋體, Tahoma, Arial;"><br/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: 宋體, Tahoma, Arial;"><span style="color: rgb(63, 63, 63); font-size: 16px; margin: 0px;">通過(guò)大量現(xiàn)場(chǎng)試驗(yàn)發(fā)現(xiàn): 在利用鉗形表<span style="font-family: " microsoft="" margin:="">對(duì)輸電線(xiàn)路桿塔地網(wǎng)接地導(dǎo)通進(jìn)行測(cè)量時(shí)，只要是針對(duì)不同引下線(xiàn)測(cè)試桿塔回路導(dǎo)通電阻數(shù)值沒(méi)有大的偏差，并且導(dǎo)通電阻值測(cè)量值在2 Ω 以下的，桿塔接地網(wǎng)本身導(dǎo)通便不存在銹斷或脫落的情況，只是桿塔接地網(wǎng)有腐蝕而已。圖4為在湖南某電業(yè)局進(jìn)行線(xiàn)路( 220 kV 宗柏線(xiàn)001 號(hào)) 導(dǎo)通電阻測(cè)試時(shí)發(fā)現(xiàn)導(dǎo)通電阻嚴(yán)重偏大后現(xiàn)場(chǎng)開(kāi)挖的圖片，也驗(yàn)證了利用鉗形表測(cè)量輸電線(xiàn)路桿塔導(dǎo)通的有效性及實(shí)用性。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: 宋體, Tahoma, Arial; text-align: center;"><img alt="桿塔接地裝置現(xiàn)場(chǎng)開(kāi)挖圖" data-bd-imgshare-binded="1" src="https://img69.chem17.com/gxhpic_884f2b1889/969b59aaf9fc955b06f8144098bfcdee2520ab8866b3adb4a36f543f92cf8132cffb5dc2fbcb9e7c.png" style="margin: 0px; padding: 0px; border: 0px; max-width: 100%; max-height: 100%; vertical-align: top; height: 266px; width: 472px;"/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: 宋體, Tahoma, Arial; text-align: center;"><span style="color: rgb(63, 63, 63); font-size: 16px; margin: 0px;">圖4 桿塔接地裝置現(xiàn)場(chǎng)開(kāi)挖圖</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(85, 85, 85); font-family: 宋體, Tahoma, Arial;"><span style="color: rgb(63, 63, 63); font-size: 16px; margin: 0px;">對(duì)比傳統(tǒng)的<span style="font-family: 微軟雅黑, " microsoft="" margin:="">接地?fù)u表，</span>鉗形表攜帶方便，操作簡(jiǎn)單，讀數(shù)快捷，<span style="font-family: " microsoft="" margin:="">大大縮短了測(cè)試桿塔接地電阻和導(dǎo)通電阻的時(shí)間，提高了工作效率。利用鉗形表測(cè)量，可對(duì)桿塔導(dǎo)通是否存在銹斷或被偷盜的情況作出判斷，為在線(xiàn)監(jiān)測(cè)發(fā)展奠定了基礎(chǔ)。</span></span></p><p><span style="color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif"><br/></span><br/></p><p><img alt="" src="https://img69.chem17.com/gxhpic_884f2b1889/cc96a308d3b6dd50d9bf2f7692ac29b27f5c0da3b5ba352f277bb89d0854b6c5385afe3b86e1fbf8.jpg" style="width:800px"/><img alt="" src="https://img69.chem17.com/gxhpic_884f2b1889/cc96a308d3b6dd50d9bf2f7692ac29b265d28a4578b78f0ffee164f29a7a3be141d27f22e23f0c76.jpg" style="width:800px"/></p><p style="text-align:center"><img alt="ETCR2000+<strong>鉗形接地電阻測(cè)試儀</strong>" src="https://img69.chem17.com/gxhpic_884f2b1889/969b59aaf9fc955b06f8144098bfcdee7b24dce1e3366017a6c4592f437cbd38606fd41344e113a0.png" style="height:auto"/></p><p>ETCR2000<strong>鉗形接地電阻測(cè)試儀</strong>技術(shù)參數(shù)</p><div id="su2m2qmw88" class="tabledivclass" style="width: 99%; float: left;"><table border="1" cellpadding="0" cellspacing="0" class="ueditorTableStyle" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0); -webkit-user-drag: none; background-color: rgb(255, 255, 255); border-collapse: collapse; border-spacing: 0px; box-sizing: border-box; color: rgb(51, 51, 51); empty-cells: show; font-family: 微軟雅黑; font-size: 12px; margin: 0px; max-width: 748px; outline: 0px; padding: 0px; text-size-adjust: none; width: 852px;" align="left"><tbody><tr class="firstRow"><td><span style="color:rgb(63, 63, 63)">電源</span></td><td><span style="color:rgb(63, 63, 63)">5號(hào)電池（LR6）x4節(jié)</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">鉗口尺寸</span></td><td><span style="color:rgb(63, 63, 63)">65mm×32mm</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">液晶尺寸</span></td><td><span style="color:rgb(63, 63, 63)">4位LCD數(shù)字顯示，長(zhǎng)寬47mm×28.5mm</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">量程</span></td><td><span style="color:rgb(63, 63, 63)">0.010Ω~1000Ω</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">分辨力</span></td><td><span style="color:rgb(63, 63, 63)">0.001Ω</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">精度</span></td><td><span style="color:rgb(63, 63, 63)">±1%±0.01Ω*（高精度）</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">數(shù)據(jù)存儲(chǔ)</span></td><td><span style="color:rgb(63, 63, 63)">99組</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">數(shù)據(jù)上傳功能</span></td><td><span style="color:rgb(63, 63, 63)">選購(gòu)</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">自動(dòng)關(guān)機(jī)</span></td><td><span style="color:rgb(63, 63, 63)">5分鐘左右自動(dòng)關(guān)機(jī)</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">功耗</span></td><td><span style="color:rgb(63, 63, 63)">≤50mA，連續(xù)工作約30小時(shí)</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">工作環(huán)境</span></td><td><span style="color:rgb(63, 63, 63)">-20℃~55℃；20%rh~80%rh</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">存放環(huán)境</span></td><td><span style="color:rgb(63, 63, 63)">-20℃~60℃；90%rh以下</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">報(bào)警臨界值設(shè)定范圍</span></td><td><span style="color:rgb(63, 63, 63)">電阻：1~199Ω</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">聲光報(bào)警</span></td><td><span style="color:rgb(63, 63, 63)">“嘟--嘟--嘟--"報(bào)警聲，報(bào)警符號(hào)閃爍，按AL鍵開(kāi)啟、關(guān)閉、設(shè)置</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">干擾信號(hào)識(shí)別功能</span></td><td><span style="color:rgb(63, 63, 63)">“嘟--嘟--嘟--"提示音，NOISE符號(hào)閃爍顯示</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">保護(hù)等級(jí)</span></td><td><span style="color:rgb(63, 63, 63)">雙重絕緣</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">結(jié)構(gòu)特點(diǎn)</span></td><td><span style="color:rgb(63, 63, 63)">鉗形CT</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">換檔</span></td><td><span style="color:rgb(63, 63, 63)">全自動(dòng)換檔</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">外部磁場(chǎng)</span></td><td><span style="color:rgb(63, 63, 63)">＜40A/m</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">外部電場(chǎng)</span></td><td><span style="color:rgb(63, 63, 63)">＜1V/m</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">單次測(cè)量時(shí)間</span></td><td><span style="color:rgb(63, 63, 63)">0.5秒</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">電阻測(cè)量頻率</span></td><td><span style="color:rgb(63, 63, 63)">＞1KHz</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">被測(cè)電流頻率</span></td><td><span style="color:rgb(63, 63, 63)">50/60Hz自動(dòng)</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">電池電壓低指示功能</span></td><td><span style="color:rgb(63, 63, 63)">當(dāng)電池電壓低于5.3V時(shí)，電池電壓低符號(hào)顯示</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">存儲(chǔ)數(shù)據(jù)已滿(mǎn)指示</span></td><td><span style="color:rgb(63, 63, 63)">存儲(chǔ)數(shù)據(jù)已滿(mǎn)99組，閃爍顯示“MEM"符號(hào)</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">超量程指示</span></td><td><span style="color:rgb(63, 63, 63)">超量程指示“OL Ω"、“L0.01"或“OL A"</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">鉗表質(zhì)量</span></td><td><span style="color:rgb(63, 63, 63)">1160g (含電池)</span></td></tr><tr><td><span style="color:rgb(63, 63, 63)">鉗表尺寸</span></td><td><span style="color:rgb(63, 63, 63)">長(zhǎng)x寬x厚：285mm×85mm×56mm</span></td></tr></tbody></table></div><p><br/></p><p><br/></p> </div> <link rel="stylesheet" type="text/css" href="/css/MessageBoard_style.css"> <script language="javascript" src="/skins/Scripts/order.js?v=20210318" type="text/javascript"></script> <a name="order" id="order"></a> <div id="su2m2qmw88" class="ly_msg" id="ly_msg"> <form method="post" name="form2" id="form2"> <h3>留言框 </h3> <ul> <li> <h4 class="xh">產(chǎn)品：</h4> <div id="su2m2qmw88" class="msg_ipt1"><input class="textborder" size="30" 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