1. Pulse AC DC TIG welding, mix AC DC TIG welding, MMA welding. 2. Solf key and digital display ... , CE Features:1.Welder adopt international standard digital control IGBT inverter technology, use microprocessor to control accurately, easily to use, high ... 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 ...