SHOWER SETS, FIXTURES FOR BATH AND SHOWERS, PARTICULARLY FAUCETS, SHUT-OFF VALVES FOR FLUIDS, REVERSE FLOW PREVENTING VALVES, BACK PRESSURE AND CHECK VALVES, SPRAYS, ROSES, SPRINKLERS, HOT AND WARM WATER MIXING FAUCETS; WASTE GAS PIPES; FITTINGS AND FIXTURES (PARTICULARLY TAPS AND VALVES) FOR GASEOUS AND LIQUID FUELS, FOR WATER AND FOR STEAM, ALL THE AFOREMENTIONED GOODS BEING USED WITH WATER HEATERS, SINGLE ROOM HEATERS, HEATING BOILERS FOR CENTRAL HEATING, BATH AND SHOWER EQUIPMENT