TSk Electric hot-air generator, Drying device, Ultra high temp. hot-air genearator, Heater for  industry, Heatproof electric blower, Mixing fan into the oven, Portable dryer, High-blow nozzle, Auto-temp controller, Piping parts, Piping parts for hot-air generator, Mold dryer, Deodorization device (Platinum catalytic oxidation method), TSK Heat exchanger , Filter, Exhaust gas processing device for the semiconductor, Machine appliance for the ship, Heating machine, and Those maintenance services