Vapor Bluing Furnace is the energy conservation high accuracy controls the thermoperiod work furance. Uses the microcomputer procedure high accuracy to control the warm cabinet multi-areas to control warm, the vacuum air blower high speed heated air circulation, the vapor sends the blue furnace atmosphere, the temperature to be extremely even. For compressor vapors etc electrical machinery rotor, stator, silicon steel plate, high-speed steel cutting tool, jig jig, powder metallurgy send orchid.