1. CO2 MIG MAG,MMA,TIG function 2. Can work normal when voltage range in +15%~-20% 3. Save 30 group parameter. 4 CCC and CE Digital IGBT Inverter MIG MAG Welding MachinesFeatures:1.Digital control circuit, independent microcomputer database, make precise control from input to output.2.Oneknob control,only need set the welding current, the welding voltage will exact matching automatically, can ...