.It has the adjustment function of current and voltage separately , which is easy to handle and work with great efficiency for the new and old users. Our special trigger integrated circuit control system enables to balance the welding voltage , easy to forming and lower spatter, .One unit multi-uses : co2/mag welding , manual arc welding and carbon arc air gouging .Absorb alimentation and distillate of the advanced machine type in and out of china , careful design and advanced technology. Wooden carton