... ERW Pipe Production Line/ERW Pipe Mill/ERW Pipe Making MachineExternal diameter: Max.Φ508mm(20inch)Steel grade: Max ... Coiler car, Decoiler, Peeler and straightener, Pinch and leveling Machine, End shear machine, Accumulator (Storage capacity: Max.200Tons), Planner (options), ... unit, Pipe (online) ultrasonic tester, IF annealing unit, Air coolant, Water coolant, Sizing unit (Turkey head), Cut off ...