[ Valves of metal, other than parts of machines ]

Valves as parts of machines; pressure regulators as parts of machines; air condensers

Solenoid valves; automatic liquid-flow control machines and instruments

Air purifying apparatus and machines for industrial purposes; air conditioning installations; air supplying apparatus for controlling of temperature and humidity in the nature of an air conditioning apparatus; air-conditioning apparatus for industrial purposes; air cooling apparatus; refrigerating machines; heat exchangers, not parts of machines [ ; valves for water supply pipes for heating and cooling installations; valves for water distributing pipes for heating and cooling installations; water control valves for faucets; valves for gas pipes for heating and cooling installations; thermostatic valves as parts of heating installations ]