6
Steel tubes; Nozzles of metal; Rope thimbles of metal; Ducts of metal, for central heating installations; Pipes of metal, for central heating installations; Ducts and pipes of metal for central heating installations; Water-pipes of metal; Sleeves [metal hardware]; Elbows of metal for pipes; Tubbing of metal; Drain pipes of metal; Grease nipples; Pipe muffs of metal; Junctions of metal for pipes; Valves of metal, other than parts of machines; Pipework of metal; Fittings of metal for compressed air lines; Reinforcing materials of metal for pipes; Jets of metal; Clips of metal for cables and pipes; Drain traps [valves] of metal; Gutter pipes of metal; Water-pipe valves of metal; Steel pipes
11
Hydrants; Anti-splash tap nozzles; Taps for pipes and pipelines; Faucets for pipes and pipelines; Spigots for pipes and pipelines; Cocks for pipes and pipelines; Humidifiers for central heating radiators; Heating installations; Heating installations [water]; Hot water heating installations; Central heating radiators; Water distribution installations; Pipes [parts of sanitary installations]; Water-pipes for sanitary installations; Water conduits installations; Fountains; Pressure water tanks; Radiators [heating]; Washers for water taps; Washers for water faucets; Mixer taps for water pipes; Mixer faucets for water pipes; Regulating and safety accessories for water apparatus; Water intake apparatus; Expansion tanks for central heating installations