... a mix of program system, stepping driving, high frequency power, electric appliance. It has integrated design so that ... three clap, five-phase ten-step, three-phase six-step , taper, straight, YH computer control etc.4. Inverter control .Input three-phase AC 380V. If use single-phase ... 8. The testing processing speed of efficient high frequency power source can reach more than 10000mm^2 per hour9 ...