... the guide rail over wide, the coils should make single side hardening. If guide way over narrow, should two sided one ... parts, such as: all kinds of gear wheel, chain wheel, kinds of axis, pin.3. hardening the industrial of machine tool, such as : bed ... ring, spring pin, valve, shifting fork. 6. all kinds of track spiker. Specification:Model: WH-VI-80 Output power: 80KW Input voltage ...