... 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 method consisted ... much easy and useful for client’s usage. GMAW(CO2/MIG/MAG) welding machine