6
Check valves of metal [other than parts of machines]; Clack valves of metal [other than parts of machines]; Drain traps [valves] of metal; Draw-off valves (metal -) [other than parts of machines]; Flap valves of metal; Manually operated metal valves; Metal pulleys, springs and valves [not including machine elements]; Metal valves for controlling the flow of fluids in pipelines; Metal valves for controlling the flow of gases in pipelines; Metal valves for water pipes; Metal valves not being parts of machines; Pipes, tubes and hoses, and fittings therefor, including valves, of metal; Regulating valves of metal [other than parts of machines]; Regulators [valves] of metal other than parts of machines; Valve assemblies of metal [other than parts of machines]; Valves of metal (Water pipe -); Valves of metal other than parts of machines including those from alloy steel and titanium; Valves of metal, other than parts of machines; Water pipe valves [metal]; Water-pipe valves of metal
7
Drives for valves; Servo-valves; Servo-control valves; Metal safety valves [parts of machines]; Temperature control valves [parts of machines]; Pressure control valves being parts of machines; Pressure controllers [valves] being parts of machines; Pressure valves [parts of machines]; Non-return valves of metal [parts of machines]; Valves [parts of machines]; Digital electro-hydraulic proportioning valves; Valve diaphragms; Control valves [parts of machines]