1) Class: 1
Description: fluids for hydraulic devices, fluids for hydraulic apparatus, fluids for hydraulic circuits, transmission fluids for hydraulic circuits
2) Class: 6
Description: valves of metal for water pipes, metal valves for water pipes, water-pipe valves of metal, metal water-pipe valves, valves of metal, other than parts of machines, valves of metal other than parts of machines including those from alloy steel and titanium, angle valves of metal, other than parts of machines, water tanks of metal, metal valves, not being parts of machines, valves of metal, other than parts of machines, including those made from alloy steel and titanium
3) Class: 7
Description: valves [parts of pumps], valves being parts of pumps, hydraulic valves, valves [parts of machines], valves as machine components, pressure regulating valves, valves being components of deep oil and gas well drilling equipment, pressure valves [parts of machines], valve actuators, hydraulic, pressure valves being parts of machines, pressure regulating valves being parts of machines, pump control valves, pressure reducing valves [parts of machines], proportional flow valves being parts of machines, proportional flow valves as parts of machines, carburant flow regulators being valves [parts of machines], ventilation valves [parts of machines], hydraulic valve actuators, vacuum control valves [parts of engines], angle valves being parts of machines, control valves for regulating the flow of gases and liquids [parts of machines], pressure controllers [valves] being parts of machines, vacuum control valves [parts of engines and motors], valve actuators, pneumatic, vacuum control valves [parts of motors], pressure reducing valves being parts of cryogenic apparatus [machines], pneumatic actuators for control valves, lockable valves [parts of machines], valve diaphragms, unloading check valves for the outlets of air compressors, pressure valves being parts of semiconductor manufacturing machines, dosing valves [parts of machines], propulsion mechanisms for water vehicles
4) Class: 9
Description: amplifying valves, valve actuators, electric, electromagnetic valves, pressure indicating plugs for valves, pressure indicator plugs for valves, electric valve actuators, control valves for regulating the flow of gasses and liquids [solenoid valves], solenoid valves, valve amplifiers, flow gauges
5) Class: 11
Description: water regulating valves [parts of water supply installations], water regulating valves [taps] being parts of sanitary installations, water control valves for faucets, water regulating valves [faucets] being parts of sanitary installations, level controlling valves in tanks, pipe water valves being parts of water heating installations, industrial water treatment apparatus and installations, water conditioners, industrial-water purifying apparatus, membrane filtration units for water treatment apparatus, water conditioning installations, electrostatic filters for water filtration
6) Class: 19
Description: industrial water tanks of masonry
7) Class: 20
Description: water control valves of plastic, valves of plastic for water pipes, water-pipe valves of plastic, plastic valves for water pipes, plastic water-pipe valves, valves, not of metal, for containers, valves of plastic, other than machine parts, valves made of plastic, other than machine parts, valves of plastic being other than machine parts, valves of plastic, other than parts of machines, plastic valves, other than machine parts, valves made of plastic, other than parts of machines, non-metal valves for containers, plastic valves, other than parts of machines, angle valves of plastics, other than parts of machines
8) Class: 35
Description: retail services or wholesale services for water-pipe valves, not of metal or plastic, retail or wholesale services for water-pipe valves, not of metal or plastic
9) Class: 37
Description: pumping septic tanks, repair and maintenance of valves [parts of machines]
10) Class: 40
Description: water treatment, water treating