Standard: API 5L, API 5CT, ASTM A252, EN10217, EN10219, BS 5950, ASTM A572 , JIS, IS
Steel Grade
API 5L: GR A, GR B, X42,X46, X56, X60,X65,X70
ASTM A252 GR 1, GR 2, GR 3
EN: S275, S275JR, S355JRH, S355J2H
Surface：Fusion Bond Epoxy Coating, Coal Tar Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil Coating
