... welding torch 焊接气炬 weldment 焊制件 well 轮舱 ...
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短语
钢板制对焊管件
Steel plate butt-welding pipe fittings
;
Steel Plate butt-welded fittings
聚乙烯焊制管件
polyethylene fitting from butt fusion
;
PE welding pipe fittings
锻钢制承插焊管件
Forged steel socket-welded fittings
钢板制对焊管配件
Steel plate butt-welding pipe fittings