首页>
外国专利>
A combined water heater for use in the place of the ordinary coppers at present in use , and can be used for ordinary washing purposes, for supplying hot water for plunge baths and with the coil inside for pasteurising milk, and the like and the supply of hot water continuously
A combined water heater for use in the place of the ordinary coppers at present in use , and can be used for ordinary washing purposes, for supplying hot water for plunge baths and with the coil inside for pasteurising milk, and the like and the supply of hot water continuously
