... as below: 1. Seamless Steel Pipes ASTM A53 GR B, ASTM A106 GR B, API 5L GR B etc.; ... Steel Pipes,ERW Electric Resistance Welded Steel Pipes / Tubes ; LSAW Longitudinal Submerged Arc Welded Steel Pipes / Tubes ;JCOE Welded Steel Pipes; OD ... ASTM A53, ASTM A106, A210, A252, A333; PSL1 PSL2 X42, X46, X52, X60, X65, X70; S355J2H, 355J0H, ... T.e.l: +86-317-2180586; F.a.x: +86-317-3172336; C.P: +86-13231768661 ...