การผลิตเครื่องสูบ คอมเพรสเซอร์ ก๊อกน้ำและวาล์วอื่นๆ

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

This class excludes:
- manufacture of valves of unhardened vulcanized rubber, glass or of ceramic materials, see 2219, 2310 or 2393
- manufacture of hydraulic transmission equipment, see 2812
- manufacture of inlet and exhaust valves of internal combustio