Specifications: 1. Size: OD: 6 - 610 mm / WT: 1.65 - 22mm, Length: 0.5 mtr - 20 mtr 2. Standard: API 5L, ASTM A53, EN10217, BS1387-85, Material: GR.B, X42, X46, X52, X56, X60, S235, Q345, S355JRH, ST37, ST52