... 5mm 3.Stable arc 4.Beautiful welding DC ARC 200a Inverter Welding Machine characteristics:1.It adopts PWM control technology, ... and another low alloy components.-------CUT,CT,LGK Series is inverter dc plasma cutting for stainless steel,carbon steel,copper,aluminum ... and other sheet metal.-------MIG Series is inverter carbon dioxide gas shielded welding for carbon steel,low alloy ...