6
Building and construction materials and elements of metal; Structures and transportable buildings of metal; Small items of metal hardware; Unprocessed and semi-processed materials of metal, not specified for use; Check valves of metal [other than parts of machines]
7
Pumps, compressors and blowers; Sweeping, cleaning, washing and laundering machines; Stop valves [parts of machines]; Stop valves of plastic [parts of machines]; Stop valves of metal [parts of machines]; Dispensing valves being machine parts; Dosing valves [parts of machines]; Butterfly valves of metal being parts of machines; Butterfly valves (Non-metallic -) being parts of machines; Valves operated by changes in pressure; Level regulating valves [parts of machines]; Hydraulic valves; Hydraulic valves [parts of machines]; Cocks [valves] of metal parts of machines; Hydraulically operated butterfly valves; Valves operated automatically by hydraulic control; Pneumatically operable valves; Pumps [parts of machines, engines or motors]; Non-return valves of plastic [parts of machines]; Check valves (non-metallic -) [parts of machines]; Spools of metal [parts of machines]; Reels [parts of machines]; Exhaust silencers; Mufflers [parts of machines]
9
Magnetic coils; Measuring devices; Measuring, detecting, monitoring and controlling devices; Solenoid valves [electromagnetic switches]; Temperature sensors
11
Stop cocks for regulating gas; Stop cocks for regulating water; Stop cocks being safety apparatus for gas apparatus; Stop cocks being safety apparatus for water apparatus; Regulating and safety accessories for water and gas installations; Pressure relief valves [safety apparatus] for gas apparatus; Pressure relief valves [safety apparatus] for water pipes; Pressure relief valves [safety apparatus] for water apparatus; Pressure relief valves [safety apparatus] for gas pipes
17
Seals (Non-metallic -) for oil; Couplings (Non-metallic -) for use with high pressure hoses; Couplings (Non-metallic -) for flexible pipes; Seals, sealants and fillers; Flexible pipes, tubes, hoses, and fittings therefor, including valves, non-metallic; Glands for pipes