... high frequency heating quenching furnace for auto parts shaft Heat treatmentVarious kind of automobile parts, motorcycle parts, hardware tools, gears, chain ... , copper, aluminous and other metal smelting,. Other fieldsHeat fitting in heat seal, etc. It is mainly through the ... , Machine Tool, etc. quenching;5, various hardware metal parts, machining parts. Such as shaft, gear (sprocket), cam, clamps, ...