... 1. MOSFET Inverter DC TIG adopt advanced inverter technology, used import MOSFET component, have the very good constant current characteristic, for sheet welding, shape is ... efficiency is high, energy-conservation is remarkable; 2.Suitable for welding stainless steel, carbon steel, copper and other nonferrous metals. 3 ... to be Amphenon control connector: (Euro type) Digital MOSFET Inverter DC TIG