... can be upgrade and cooperate with automatic welding machinery;2Adopt soft contact functional keypress in the panel, single knob adjust stepless, digital display ... ;2.Satisfied AC/DC TIG welding, pulse AC/DC TIG welding, mix AC/DC TIG welding, MMA welding, and so on;3.Suitable for ... .1-500Overall dimensionsmm540×250×440570×310×630Weightkg304753 AC DC TIG welding machine (IGBT, Pulse, square wave,200A)