black steel pipe 中文意思是什麼
black steel pipe
解釋
黑鋼板-
Standard specification for steel line pipe, black, plain - end, electric - resistance - welded
電阻焊接黑色平端鋼襯管用標準規范 -
Standard specification for steel line pipe, black, plain end, longitudinal and helical seam, double submerged - arc welded
雙埋弧焊縱向和螺旋焊縫平頭無鍍層鋼制總管的標準規范 -
Standard specification for steel line pipe, black, plain end, laser beam welded
激光束焊平頭無鍍層鋼制總管的標準規范 -
Standard specification for steel line pipe, black, furnace - butt - welded
爐對焊黑色鋼管線的標準規范 -
Standard specification for steel line pipe, black, plain - end, seamless
無縫平頭黑色鋼管線標準規范
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