India sofe and austrial technich. inverter sopot. Inverter welding: Inverter frequency 2000HZ; .With LED display: more intuitiv Features .Inverter welding: Inverter frequency 2000HZ; .With LED display: more intuitive operation; .Gun with L, C gun; .Has three pulse welding: single pulse welding,double welded, multi-pulse welding, suitable for all kinds of steel welding;.With air cooling system: ...