Sam welded pipe machine adopts advanced welding technology and offers dual welding arcs, increased speed, higher deposition, superior mechanical properties and quality. HG50, HG 79 high frequency welded pipe machine is widely applied for producing tubes for heat exchanger, refrigerator, frame of car, bicycle, fitness equipment, furniture, cooling machine, petrol transmission, construction industry, etc. This high frequency welded pipe making machine or welded pipe mill composes of a complete