Product Name: Large diameter lsaw steel pipe
Standard: API 5L PSL1&PSL2, ASTM A671, ASTM A672, ASTM A252, BS EN10210, BS EN10219
Grade: GR.B, X42, X46, X52, X60, X65, X70, etc, GR.A, GR.B, A45, A50, A55, B55, B60, B65, B70, etc, CB60, CB65, CC60, CC65, etc,...