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 ... ,software can be upgrade and cooperate with automatic welding machinery. 2. Adopt soft contact functional key-press in the panel,single ... can be loaded easily. 4. Meet the demands of DC TIG, pulse DC TIG,MMA welding,and so on. 5. Suitable for ...