1. Pulse AC DC TIG welding, mix AC DC TIG welding, MMA welding. 2. Solf key and digital display 3. ... convienient to set welding parameter;2.Satisfied AC/DC TIG welding, pulse AC/DC TIG welding, mix AC/DC TIG welding, MMA welding, and so on;3.Suitable for welding of the stainless ... 1-500Overall dimensionsmm540×250×440570×310×630Weightkg304753 AC DC TIG welding machine (IGBT, Pulse, square wave,200A)