External diameter: Max.508mm(20inch), Steel grade: Max X80 Meet with API 5L, API 5CT ,ASTM A53 ... ERW Pipe Mill/ERW Pipe Making MachineExternal diameter: Max.Φ508mm(20inch) Steel grade: Max X80Steel material: Carbon steelMeet with API 5L, API ... , Pinch and leveling Machine, End shear machine, Accumulator (Storage capacity: Max.200Tons), Planner (options), Edge miller, Plate (online) ultrasonic tester, ...