1. Adopt the MOSFET components 2. Have passed CCC, CE Feature: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 good, efficiency is high, energy-conservation is remarkable; 2.Suitable for welding stainless steel, carbon steel, copper and other nonferrous metals. 3.Used ...