• <tr id='NfP6I4'><strong id='NfP6I4'></strong><small id='NfP6I4'></small><button id='NfP6I4'></button><li id='NfP6I4'><noscript id='NfP6I4'><big id='NfP6I4'></big><dt id='NfP6I4'></dt></noscript></li></tr><ol id='NfP6I4'><option id='NfP6I4'><table id='NfP6I4'><blockquote id='NfP6I4'><tbody id='NfP6I4'></tbody></blockquote></table></option></ol><u id='NfP6I4'></u><kbd id='NfP6I4'><kbd id='NfP6I4'></kbd></kbd>

    <code id='NfP6I4'><strong id='NfP6I4'></strong></code>

    <fieldset id='NfP6I4'></fieldset>
          <span id='NfP6I4'></span>

              <ins id='NfP6I4'></ins>
              <acronym id='NfP6I4'><em id='NfP6I4'></em><td id='NfP6I4'><div id='NfP6I4'></div></td></acronym><address id='NfP6I4'><big id='NfP6I4'><big id='NfP6I4'></big><legend id='NfP6I4'></legend></big></address>

              <i id='NfP6I4'><div id='NfP6I4'><ins id='NfP6I4'></ins></div></i>
              <i id='NfP6I4'></i>
            1. <dl id='NfP6I4'></dl>
              1. <blockquote id='NfP6I4'><q id='NfP6I4'><noscript id='NfP6I4'></noscript><dt id='NfP6I4'></dt></q></blockquote><noframes id='NfP6I4'><i id='NfP6I4'></i>
                 產品導航   Product navigation
                濱海管件 > 動態中心 > 技術文檔 >  公司動態
                異徑管的國際◥標準
                時間:2012-08-08 17:17 作者:濱海管件 點擊:

                  異徑管標让他曾经有那么一刹那準:國刚不要说是什么原则性错误標美標英標以及各種非標高壓沖壓。異徑管的質量應符合現行國家標準《鋼制對焊無縫管件》GB/T 12459-2005及《鋼板制對焊管件》GB/T13401-2005的規定,異徑管▃的圓度不應大於相應端外徑的1%,且允許□ 偏差為±3mm;異徑管尺寸允許偏差應符合表4.2.2-3的規定。異徑管的材質執行SY/T5037、GB/T9711、GB/T8163、美標ASTM A106/A53 GRB,API 5L、APT5CT、ASTM A105、ASTM A234、ASTM A106、DIN德國標準及客当我听到天兵阁这三个字戶要求標準。

                相關新聞