Pipes, tubes, valves and valve assemblies; junctions and couplings for pipes, tubes, valves and valve assemblies; gaskets and seals for all the aforesaid goods; parts and fittings in this class for the aforesaid goods; all made wholly or principally of plastics, rubber or synthetic rubber

Pipes, tubes, valves and valve assemblies included in the class; joints, junctions and couplings all for pipes, tubes, valves and valve assemblies; all made wholly or principally of common metals; parts and fittings in this class for the aforesaid goods