... install 3.ISO9001:2000 4.wide usage Ultra High Frequency Induction Heating Machine ModelOscillationpower(KW)Oscillation circuitOscillationfrequency(KHZ)Oscillating tubeMax.Workpiece ... .5%b.Filament power supply using manostat, stabilized voltage high precision, long service life, energy saving significantly; Rectifier ... metal component surface or plane heat treatment quenching, annealing, tempering;