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