RSV

Valves of metal, other than parts of machines; water-pipe valves of metal; drain traps [valves] of metal

Valves [parts of machines]; clack valves [parts of machines]; pneumatic controls for machines, motors and engines; hydraulic valves; hydraulic controls for machines, motors and engines; taps [parts of machines, engines or motors]; steam traps; pressure valves [parts of machines]; pressure regulating valve