API 5L Diameter Besar pipa baja spiral SSAW pipa baja spiral SSAW Steel Grade: BS:1387, EN10217:S185, S235, S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St12, ST13, ST14, st33, St37, St44, ST52 ASTM A 53: Gr. A, Gr B API 5L: A, B, X42, X46, X52, X56, X60, Standar pipa baja SSAW spiral X65 X70: AKU S: 3589