... MMA, TIG, MIG, air plasma, STUD and submerged welding machines DC Inverter MMA Welding Machi Technical Characteristics:1. Waterproof, anti-static, anti ... .6-3.21.6-3.2Machine case materialSteelSteelPlastic or Steel DC Inverter MMA Welding Machine (welding machine, inverter mma welding ...