... 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 ... torch, the user’s self-definition, and various striking arc ways. 12. LCD and digital display:With the two ...