Statistical Classification of Economic Activities NACE Rev. 2.0

This class includes:
- manufacture of internal combustion piston engines, except motor vehicle, aircraft and cycle propulsion engines:
marine engines
railway engines
- manufacture of pistons, piston rings, carburettors and such for all internal combustion engines, diesel engines etc.
- manufacture of inlet and exhaust valves of internal combustion engines
- manufacture of turbines and parts thereof:
steam turbines and other vapour turbines
hydraulic turbines, waterwheels and regulators thereof
wind turbines
gas turbines, except turbojets or turbo propellers for aircraft propulsion
- manufacture of boiler-turbine sets
- manufacture of turbine-generator sets
- manufacture of engines for industrial application

This class excludes:
- manufacture of electric generators (except turbine generator sets), see 27.11
- manufacture of prime mover generator sets (except turbine generator sets), see 27.11
- manufacture of electrical equipment and components of internal combustion engines, see 29.31
- manufacture of motor vehicle, aircraft or cycle propulsion engines, see 29.10, 30.30, 30.91
- manufacture of turbojets and turbo propellers, see 30.30

This class includes:
- manufacture of hydraulic and pneumatic components (including hydraulic pumps, hydraulic motors, hydraulic and pneumatic cylinders, hydraulic and pneumatic valves, hydraulic and pneumatic hose and fittings)
- manufacture of air preparation equipment for use in pneumatic systems
- manufacture of fluid power systems
- manufacture of hydraulic transmission equipment
- manufacture of hydrostatic transmissions

This class excludes:
- manufacture of compressors, see 28.13
- manufacture of pumps for non-hydraulic applications, see 28.13
- manufacture of valves for non-fluid power applications, see 28.14
- manufacture of mechanical transmission equipment, see 28.15

This class includes:
- manufacture of air or vacuum pumps, air or other gas compressors
- manufacture of pumps for liquids whether or not fitted with a measuring device
- manufacture of pumps designed for fitting to internal combustion engines: oil, water and fuel pumps for motor vehicles etc.
This class also includes:
- manufacture of hand pumps
This class excludes:
- manufacture of hydraulic and pneumatic equipment, see 28.12

This class includes:
- manufacture of industrial taps and valves, including regulating valves and intake taps
- manufacture of sanitary taps and valves
- manufacture of heating taps and valves

This class excludes:
- manufacture of valves of unhardened vulcanised rubber, glass or of ceramic materials, see 22.19, 23.19 or 23.44
- manufacture of inlet and exhaust valves of internal combustion engines, see 28.11
- manufacture of hydraulic and pneumatic valves and air preparation equipment for use in pneumatic systems, see 28.12

This class includes:
- manufacture of ball and roller bearings and parts thereof
- manufacture of mechanical power transmission equipment:
transmission shafts and cranks: camshafts, crankshafts, cranks etc.
bearing housings and plain shaft bearings
- manufacture of gears, gearing and gear boxes and other speed changers
- manufacture of clutches and shaft couplings
- manufacture of flywheels and pulleys
- manufacture of articulated link chain
- manufacture of power transmission chain

This class excludes:
- manufacture of other chain, see 25.93
- manufacture of hydraulic transmission equipment, see 28.12
- manufacture of hydrostatic transmissions, see 28.12
- manufacture of (electromagnetic) clutches, see 29.31
- manufacture of sub-assemblies of power transmission equipment identifiable as parts of vehicles or aircraft, see divisions 29 and 30