6
Pipes, tubes and hoses, and fittings therefor, including valves; Pipes, tubes and hoses, and fittings therefor, including valves, of metal; Valves of metal other than parts of machines including those from alloy steel and titanium; Valve assemblies of metal [other than parts of machines]
7
Pressure release screws being parts of machines; Pressure controllers [valves] being parts of machines; Reducers (Pressure -) [parts of machines]; Reducers (Pressure -) [parts of machines]; Pressure regulators [parts of machines]; Pressure controllers [valves] being parts of machines; Pressure valves [parts of machines]; Valves operated by changes in pressure; Power operated valves; Valve diaphragms; Valve assemblies of metal [parts of machines]; Valves [parts of machines]; Valves [parts of machines]; Pressure controllers [valves] being parts of machines; Valves (Clack -) [parts of machines]; Valves (Clack -) [parts of machines]; Valve diaphragms
9
Connections for electric cables; Connections for electric cables; Cable junctions for electric cables; Threaded cable connectors of metal; Diaphragms for scientific apparatus
20
Non-metallic fasteners for cables; Valves of plastic being other than machine parts; Plastic valves [other than for medical use or being parts of machines]; Valves, non-metallic