11 Mechanical equipment for the manufacture, treating, processing and refining of foodstuffs and luxury items and of liquids, beverages and fruit juices, namely, for heat treatment, heating, super heating, pasteurization, refrigeration, freezing, and installations consisting entirely or mainly of the aforesaid machines, apparatus or 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, 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, namely, pasteurizes 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, namely, 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