A plastic frame and a frame are provided in a screw-on structure. The method of the present invention simultaneously utilizes water, electricity, gas, fire and machine and performs melting-deposition on materials by simultaneously supplying water, electricity, gas, fire and machine according to the designed requirements. Further, the device comprises two different display members, each indicating the set dose. According to the present invention, better security is achieved by reducing the possibility of sensitive information disclosure and misuse in case of password theft for the key device.