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
... 74,ASTM A36,ASTM A53 GR B,API 5L GR B,ST.52.3,ST.37.2,ST.20#,SS400,S235JR ... 80, ASTM A36,ASTM A53 GR B,API 5L GR B,ST.52.3,ST.37.2,ST.20#,SS400,ASTM ... 3PP,EPOXY,PITCH,ZINCRICH ,FBE,CEMENT ANTICORROSION;OD 21.3-820mm.WT:2MM-50mm GOST 8731-74,GOST 8732-78 ... , ASTM A36,ASTM A53 GR B,API 5L GR B,ST.52.3,ST.37.2,ST.20#,SS400,S235JR ... SS400, ASTM A36,ASTM A53 GR B,API 5L GR B,ST.52.3,ST.37.2,ST.20#,SS400,S235JR, ...