... to Hitachi IGBT Inverter AC/DC Pulse Tig Welder 315A, 400A, 500A DIGITAL OPERATION PANEL HIGHLIGHT1. AC/DC TIG welding ... Suitable for the welding of aluminium, magnesium alloy, stainless steel, low carbon steel, alloy steel, copper, titanium, etc. TECHNICAL DATA ... Optional panel of Automation Tig wire feeder: digital welding machine IGBT ac dc tig welder 315A, 400A, 500A