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
... ASTM A53 GR B,API 5L GR B,ST.52.3,ST.37.2,ST.20#,SS400,S235JR,S355J2H,S355JOH, ... ,PSL1,PSL2 X42,X46,X52,X60,X65,X70 etc. 3.HOT ROLLED SEAMLESS STEEL PIPES;GOST 8731-74,GOST 8732 ... ,3PP,EPOXY,PITCH,ZINCRICH ,FBE,CEMENT ANTICORROSION;OD 21.3-820mm.WT:2MM-50mm GOST 8731-74,GOST 8732-78 ... ,X52,X60,X65,X70 etc. 4.SHS SQUARE HOLLOW SECTIONS,RHS RECTANGULAR HOLLOW SECTIONS; OD20X20mm~600X600mm,WT 0.8~50mm. GOST ...