1.IF 2-10 KHZ induction hardening machine 2.IGBT modules 3.Water-cooled machine 4.hardening layer: 5mm IF 2-10KHZ induction hardening machine Hardening various of metal workpieces 1) A variety of automotive ,motocycle parts , high frequency quenching ,heat treatment , such as: crankshaft, connecting rod, piston pin, camshaft, valves, transmission of a variety of gears, a variety of forks, a ...