... function digital 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 ... and useful for client’s usage. GMAW(CO2/MIG/MAG) welding machine