28.1 Manufacture of general-purpose machinery

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 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