... industry.Automated production process: The open book, → cleaning equipment, → feed direction, → forming, → welding, → weld ... book machine (uncoiler), 2.forming welding machine,3.grinding machine, 4.sizing ... welding machine, grinding machine, two sizing units, straightening frame, cutting machine, finished frameCertification:Comany ProfileThe MachineThe Welding Table Industrial ss pipe production line ...