Detailed Product Description AC/DC SQUARE WAVE Welding1.Stable arc, easy to fill in the wire.2.Pedal control for current.3.Compact, low noise.4.DC welding for stainless stell, alloy steel, carbon steel, copper and other color metal, AC welding for aliminium.Technical specifications ModelTIG315AC/DCImput VoltageAC.(single Phase)110V~240V±15%50HzRated input power capacity35KwNo-load voltage rated50 ...