buttwelding 中文意思是什麼
buttwelding
解釋
電阻對焊-
Wrought steel buttwelding short radius elbows and returns
可鍛鋼對接焊弧形彎頭和回轉管 -
Factory - made wrought steel buttwelding fittings
工廠制鍛鋼對焊配件 -
Factory - made wrought buttwelding fittings
工廠制鍛鋼對焊配件 -
Specification for design of steel buttwelding fittings for oil gas pipeline
油氣管道鋼制對焊管件設計規程 -
Factory - made wrought steel buttwelding induction bends for transportation and distribution systems
傳輸和分配系統用工廠預制鍛鋼對焊感應管彎頭
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