SAW,SAWH,HSAW,SSAW SPIRAL WELD STEEL PIPES API 5L PSL1 PSL2 X42,X46,X52,X60,X65,X70,ASTM A36,A53GR B,ST52.3,ST37.2,S235JR,S355J2H,S355J0HDec 30, 2013
... / SAWH / SSAW / SAW / SPIRAL WELDED STEEL PIPES;GOST 8696-74 ELECTRICALLY WELDED SPIRAL SEAM STEEL PIPES WITH 3PE,3PP,EPOXY,FBE,CEMENT ANTICORROSION ... LSAW / ERW / EFW WELDED STEEL PIPES;GOST 10704-91,GOST 10705-80 LONGITUDINALLY WELDING STEEL TUBES, GOST 20295-85 ELECTRICALLY ... X70 etc. 3.HOT ROLLED SEAMLESS STEEL PIPES;GOST 8731-74,GOST 8732-78 SEAMLESS STEEL PIPES WITH 3PE,3PP,EPOXY,PITCH,ZINCRICH ...