... .Industrial application grade welder. Unique anti-interference protection technology makes it work excellently in severe environment of hot, dusty and vibrating.2 ... CO2/MIG/MAG welding. Simple structure and high reliability make it workable with CO2, CO2+Ar, and Ar shielded gas.4 ... .Applicable to weld mild steel, high carbon steel, and SS. It is widely used in the industries of hardware, furniture and ...