... , stainless steel, Copper, and etcApplication Fields: Exhaust pipe, Steel bedstead, laser printer body frame, chair foot ... digital welding machine contain 8 single welding methods: MMA, DC-argon arc welding, pulsed-argon arc welding, argon arc spot welding, GMAW ... with the traditional simulating-control circuit welding machine, the digital welding machine is insensitive to the change of temperature ...