... /DC TIG PULSE 4).Excellent welding performance, similar to Hitachi IGBT Inverter AC/DC Pulse Tig Welder 315A, 400A, 500A DIGITAL ... OPERATION PANEL HIGHLIGHT1. AC/DC TIG welding is mixed function, excellent ... code, and easy to repair. AREA OF APPLICATION Suitable for the welding of aluminium, magnesium alloy, stainless steel, low carbon steel ...