... through rollers to the desired pipe diameter. 3.The machine then welds, straightens and cuts the pipe ... life. 2.Automatic control, easy to operate. 3.Easy to replace the moulds, save working hour ... -5.0Before22 KWAfter22KW43m X 3.0mMachinery main components: open-book machine, forming welding machine, grinding machine, two sizing units, ... and air conditioning industry. Automatic SS Pipe Making Machine