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METAL TANKS FOR LIQUIDS OR GASES; BUILT-IN HEATING FLANGES AND FITTINGS FOR WATER PIPES OF METAL AND METAL ALLOYS

EXCESS PRESSURE AND SAFETY VALVES FOR USE WITH WATER STORAGE HEATERS, HEAT PUMPS, AND AS PART OF CENTRAL HEATING SYSTEMS

ELECTRICAL TIMERS AND THERMOSTATS USED TO REGULATE THE RELEASE OF HEAT FROM STORAGE HEATERS; ELECTRIC OPEN AND CLOSED LOOP CONTROL APPARATUSES AND THEIR PARTS AND ALSO TEMPERATURE AND MONITORING APPARATUSES EXCLUSIVELY FOR USE IN HEATING INSTALLATIONS

ELECTRIC KETTLES; ELECTRIC COFFEE BREWERS FOR DOMESTIC AND COMMERCIAL USE; ELECTRICAL HEATERS; ELECTRICAL STORAGE HEATERS; ELECTRICAL HEAT PUMPS FOR CENTRALIZED AIR AND WATER HEATING SYSTEMS; ELECTRICAL TUBULAR HEATING ELEMENTS FOR USE IN ELECTRICAL HEATING APPLIANCES; ELECTRIC HOT WATER STORAGE HEATERS FOR DOMESTIC USE; CENTRAL HEATING INSTALLATIONS EQUIPPED WITH HEAT PUMP OR CENTRALIZED SOLAR COLLECTORS TOGETHER WITH THEIR COMPONENTS, SUCH AS EVAPORATORS, LIQUIFIERS, COMPACT UNITS, HEAT STORAGE TANKS AND PIPING; WATER HEATERS; ELECTRICALLY HEATED HAND DRIERS; HUMIDIFIERS; ELECTRIC SPACE HEATERS; ELECTRIC CONVECTION FURNACES; ELECTRIC AIR CONDITIONING UNITS, ELECTRIC IMMERSION BOILERS, ELECTRIC CONTINUOUS FLOW HEATERS FOR SWIMMING BATHS; ELECTRIC TANNING BOOTHS; ELECTRIC TOWEL DRIERS; UNITS FOR PURIFYING WATER; THERMOSTATS AND VALVES; GAS OPERATED HOT WATER ACCUMULATORS; SOLAR COLLECTORS AND ASSEMBLY UNITS THEREFORE CONSISTING OF EXPANSION VESSEL, CIRCULATING PUMP AND ELECTRIC CONTROL SYSTEM (EXCEPT COVERING FRAMES FOR SOLAR COLLECTORS); HEATING APPLIANCES FOR CENTRAL HEATING SYSTEMS, NAMELY, ELECTRIC HOT WATER STORAGE HEATERS FOR COMMERCIAL USE; CENTRALIZED SOLAR ENERGY HOT WATER HEATING SYSTEMS COMPRISED OF SOLAR HEAT COLLECTORS, SOLAR COMPACT UNITS AND HEAT STORAGE TANKS

PLASTIC FITTINGS FOR WATER PIPES

PLASTIC TANKS FOR LIQUIDS OR GASES

MAINTENANCE, REPAIR, AND INSTALLATION OF ELECTRICAL APPLIANCES AND HEATING AND COOKING SYSTEMS