1.Thickness:3-12mm 2.Size:25*25mm-200*200mm 3 ... 904L, etcST37-2, ASTM A36,S235JR,S355JR,SS4001.8-12mm,1250/1500mmWidely used in light industry,decoration,machinary ... 8- and so onGB, ASME10-1400mm, 0.5-200mmWidely used in ship,liquid service,ptroleum craking,chemical fertilizer equipment,high ... lining for oil wellsERW Steel PipeQ195-Q345ASTM, GB0.8-12mm,19-275mmMainly used in petroluem,chemical,power,gas, ...