1 Light weight ,high effciency, energy saving,TIG&MMA dual function. 2 CCC approved 1.Applicable scope: stainless steel, ... other metal welding; Widely used in foreign families.2.Adopt IGBT and advanced PWM technology.3.Light weight, high effciency, energy ... saving.4.Intelligent protection: over-voltage5.TIG/MMA dual functions. WS-200 IGBT inverter DC TIG/MMA WELDER