Metal building materials, namely, pipes, tubes and fittings for pipes and tubes, all made of metal; flanged pipes and pipe fittings made of metal; road infrastructure components, namely, cast iron manhole covers and gratings of metal for roads and curbs; covers for cable chambers, metal rainwater pipes, ground equipment in the nature of metal in-ground sewage and water drain pipes of metal, siphon traps in the nature of metal drain traps, rainwater gullies in the nature of metal gratings to discharge surface water and metal sewer pipes, metal pipe connectors, metal pipe joints and castings for the assembly, jointing, installation and repair of pipes, all these goods being made of metal, and intended for conduits for underground public works or to be used in sanitary or rainwater drainage systems for buildings; regulating apparatus for water supply, namely, water-pipe valves of metal

Water supply, water distribution and sanitation installations, namely, water pipes being parts of sanitary installations and water tanks for water purification and waste water treatment; water purification and treatment installations, namely, waste water purification units; irrigation and fire protection networks, namely, agricultural irrigation units, electrostatic water treatment apparatus for use with fire hydrants; irrigation hydrants; separators for sanitation collectors, namely, separators for the cleaning and purification of water; devices for access to sanitation networks namely, regulating plumbing valves; plumbing apparatus for water supply networks, namely, plumbing valves; plumbing fittings, namely, shut-off valves for water supply networks; service clamps for water supply lines, namely, valves in the nature of plumbing fittings; plumbing fittings, namely, butterfly valves; apparatus for outfitting of pumps and water tanks, namely, plumbing bibcocks; regulation apparatus for supplying water, namely, regulating valves for plumbing; level controllers for plumbing, namely, valves for controlling water level; water tank valves being plumbing fittings; plumbing fittings, namely safety valves and adjustable-opening valves for water supply networks; plumbing fittings, namely cut-off valves; plumbing fittings, namely branch valves; apparatus for protecting networks in the nature of plumbing fittings, namely, air bleed valves for water supply as parts of water distribution installations; plumbing fittings, namely air valves for supplying water as parts of water distribution installations

Raw or semi-worked rubber, gutta-percha, raw or semi-worked gum, asbestos, mica and goods made from these materials not included in other classes, namely, shock-absorbing buffers of rubber for industrial machinery, valves of rubber, water-tight rings for plumbing pipes, insulating tapes, weather stripping for use in buildings, packing materials of rubber and plastics for cushioning and stuffing; non-metal seals for use in sealing pipe connections; plastics in extruded form for use in manufacture; packing materials, namely, graphite packing for valves, pumps and gaskets, packing materials for forming seals in water pipes; stopping materials, namely, pipe gasket made primarily from rubber; insulating materials; non-metallic flexible pipes and non-metal hoses for use in the water supply, water distribution, water purification and water sanitation industries; non-metallic junctions for pipes; non-metal seals for use in the water supply, water distribution, water purification and water sanitation industries

Building materials, not of metal, namely, non-metallic rigid pipes, tubes and connectors in the nature of non-metal pipe couplings and joints, ground equipment in the nature of non-metallic in-ground sewage and water run-off basins, siphons in the nature of non-metallic rigid pipes for transferring water from one level to another, rainwater gullies in the nature of non-metal gratings to discharge surface water, gutters and sewer pipes, fluid separators in the nature of non-metal branched water pipes, and connectors, assemblies and molded parts in the nature of non-metal pipe fittings, elbows and rosettes for the assembly and installation of rigid pipes, all these goods being rigid and not of metal