1. Pulse AC DC TIG welding, mix AC DC TIG welding, MMA welding. 2. Solf key and digital ... be upgrade and cooperate with automatic welding machinery;2Adopt soft contact functional keypress in the panel, single knob adjust stepless, digital ... to set welding parameter;2.Satisfied AC/DC TIG welding, pulse AC/DC TIG welding, mix AC/DC TIG welding, MMA welding, and ...