... CUT welder/Welding Machine(Super200pi) 1. Advanced design, high invert frequency, high duty cycle, saving energy.2. Reactive power correction ... pulse output , soft switch, inverter with 100 kHz high frequency;3. Compact structure, stable welding current, steady and ... document:Package:Honeycomb fibreboard carton and EPE form:high-compressives strength,strongly resistance to shock loading,nondeformable. ...