Suitable for welding stainless steel, carbon steel, copper, aluminums and titanium. 1. Adopt international standard digital control IGBT ... easily to use, high efficiency, software can be upgraded and cooperated with automatic welding machinery.2. Adopt soft contact ... .5. Suitable for welding stainless steel, carbon steel, copper, aluminums and titanium. Digital IGBT Inverter AC/DC Pulse TIG WSE ...