11 Mechanical equipment for the manufacture, treating, processing and refining of foodstuffs and luxury items and of liquids, drinks, beverages and fruit juices, namely, for heat treatment, heating, super heating, pasteurization, refrigeration, freezing, and installations consisting entirely or mainly of the aforesaid equipment; machines, apparatus and automatic devices for the brewery and beverage industries, namely, whirlpools and wort coolers; machines, apparatus and equipment for treatment, processing and refining, namely, for heating, super heating, pasteurizing, refrigerating, freezing; refrigeration installations; heat exchangers not being parts of machines, namely, plate heat exchangers, tubular heat exchangers, heating jackets, heating tube bundles, heating coils, tubular evaporators, plate heaters, spiral heat exchangers, plate evaporators; apparatus, machines and requisites for the entire food and drinks industry, namely, pasteurization machines and apparatus in the nature of pasteurizers consisting of plate heat exchangers, tubular heat exchangers, heating jackets, heating tube bundles, heating coils, tubular evaporators, plate heaters, spiral heat exchangers or plate evaporators or a combination thereof, sterilizing apparatus and machines in the nature of sterilizer inter alia consisting of plate heat exchangers, tubular heat exchangers, heating jackets, heating tube bundles, heating coils, tubular evaporators, plate heaters, spiral heat exchangers or plate evaporators or a combination thereof, heat installations for utilizing the waste heat from cooling operations; heat pumps; plate heat exchangers; machines for treatment, processing and finishing, namely, for the purifying of milk and milk products; fermentation cellars being fermentation apparatus for industrial purposes