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