11 Sanitary installations, namely, wash-hand basins, bidets, water tanks, sinks, bath tubs, showers, shower cubicles, faucets, faucets for pipes, water conduit installations, namely, water pipes being parts of sanitary facilities, flexible water pipes being parts of bath and shower plumping installations; regulating accessories for water or gas apparatus and pipes, namely, pressure regulators for water and gas installations; water closets, toilet bowls, toilet seats, water flushing installations, namely, flush levers, flushometers, flushometer valves, flushing tanks, namely, toilet tanks, urinals; lighting apparatus, namely, electric lamps, ceiling lights, lamp shades, lampshade holders, luminous tubes for lighting