... 1. Adopt IGBT Inverter technology 2. Can be DC TIG, DC Pulse TIG, MMA Feature: 1. DC TIG Welding machine adopt international standard digital control IGBT inverter technology, use microprocessor ... can be loaded easily. 4. Meet the demands of DC TIG, pulse DC TIG,MMA welding,and so on. 5. Suitable for welding of ... the green-gray housing, Please check the photo Digital IGBT Inverter DC Pulse TIG