Inverter DC ARC Welder,High duty cycle, stable arc,energy saving,economical,INVERTER TECHNOLOGY,CEM A. Function and features1. Adopted advanced full ... -bridge inverter technology of module IGBT2. Advanced control program, meet the need of ... Warranty. 3. Technical Support. 4. CCC certificate ZX7-200IGBT dc inverter Module IGBT arc 160A IGBT Welder