... welding machine contain 8 single welding methods: MMA, DC-argon arc welding, pulsed-argon arc welding, argon arc spot welding, GMAW(CO2/MIG/MAG ... ), pulsed-GMAW, double-pulsed GMAW, arc carbon gas cutting welder and contain welding ... saving and small volume:Our machine adopts the improved IGBT inverting technology which has ...