<tr id='qby01'><strong id='qby01'></strong><small id='qby01'></small><button id='qby01'></button><li id='qby01'><noscript id='qby01'><big id='qby01'></big><dt id='qby01'></dt></noscript></li></tr><ol id='qby01'><option id='qby01'><table id='qby01'><blockquote id='qby01'><tbody id='qby01'></tbody></blockquote></table></option></ol><u id='qby01'></u><kbd id='qby01'><kbd id='qby01'></kbd></kbd>
信息通信與智能服務商
塔柱法蘭實際接觸面與設計接觸面之比（可按法蘭外緣長度計）須不小于75%；熱浸鍍鋅的鋅層表面具有實用性光滑，在連接處不允許有毛刺、滿瘤和多余結塊，并不得有過酸洗或露鐵等缺陷……
<small id='1RhLu'></small><noframes id='EBNuk'>
<tbody id='naqo9'></tbody>
<bdo id='y9P4t'></bdo><ul id='ihxqD'></ul>
