DC AC TIG welding machinery and equipment WSE200 Features and Applications:Double functions with DC and AC TIG weldingSmall in volume, light in weight, high frequency and energy-savingEasy for arc striking, steady arc, high welder qualityNot only can weld carbon steel, stainless steel, alloy steel, copper and others metals with DC function, but also can weld aluminum and magnesium alloy with AC function Accessories:(Quantity:1) Argon arc welding gun WP17, Grounding table with 16mm² ground clamp