mig welding machine Small welding deformation IGBT inverter,DSP digtal technology CE,ROHS,UL,ISO9000,approved mig welding machineCharacteristic: Slow wire ... . Small welding deformation , good welding seam forming. No Power Factor Correction technology, high power factor. High-frequency inverter, small ... can be a long time for welding. Figures show that the welding parameters can be accurately preset. ...