... in ChinaObtain patent, patent number:ZL 2008 2 0076183.5(Double-pulsed GMAW)ZL 2008 1 0054660.2(Multiple functions digital ... , chair foot, heavy vehicle, Forklift fuel tank, public bus carcass, rail locomotive, Stainless steel carcass, storage rack, golf club head, Cyclostyle ... , argon arc spot welding, GMAW(CO2/MIG/MAG), pulsed-GMAW, double-pulsed GMAW, arc carbon gas cutting welder and contain welding ...