welded steel tube

常用短語

submerged arc welded steel tube埋弧焊鋼管

welded steel tube fuselage焊管機身

Electric welded steel tube電焊鋼管

welded steel-tube fuselage鋼管焊接式機身

welded steel-tube framework焊接鋼管構架

straight seam welded steel tube直縫焊接鋼管

high-frequence welded steel tube高頻焊管

welded steel dynamite tube焊接鋼質藥筒