11 Shut-off and regulating fittings for pipes for use in water, radiator and panel heating installations and in district heating systems, gas installations, liquid gas installations, fuel oil installations, fire-extinguishing installations, sprinkler installations, compressed air installations, solar installations, industrial installations, cooling water installations, vacuum tube installations and low-pressure steam installations, included in this class; thermostatic valves; regulating and safety accessories for gas pipes; sanitary intake, run-off and overflow fittings for bath tubs and shower trays, sink units, bidets, sinks, drains, washing machines, dishwashers and dripping water pipes; toilet and urinal drains (parts of sanitary installations); shower gullies; water distribution fittings and water supply fittings for domestic sanitary installation; water distribution fittings and water supply fittings for radiator and panel heating installations and parts therefor; flushing tanks, urinal flushers, connector fittings and drainage connectors for assembly in mounting frames; water basin valves of metal; activation rosettes and covers, of plastic and/or glass, adapted for sanitary intake, run-off and overflow fittings for bath tubs and shower trays; sink valves; sink odour traps; bidet odour traps, mainly of glass; activation plates, being parts of recessed sinks for triggering the rinsing function