Metal building materials, namely, pipes, tubes and pipe fittings of metal or containing metal; road system components, namely, metal manhole covers and grilles of ductile cast iron for pavements and curbs; components of metal or containing metal for conduits for underground public works or for sewage or rainwater drainage systems for buildings, namely, covers for cable chambers, rain-water pipes, ground equipment, siphons, rainwater gullies, fluid separators, pipe connectors, joinery fittings and cast parts in the nature of couplings and joints for the fitting, assembly, installation and repair of conduits; ironmongery and metal parts for building doors, windows or assemblies of tempered glass, namely, metal locks, knobs and pulls; profiled sections for buildings, namely, metal profiles made of steel, iron, metal titanium and other metals and their alloys; metal water-pipe valves

Water purification installations; water supply and distribution installations, namely, water tanks and water pipes; agricultural irrigation units; fire protection networks in the nature of fire hydrants linked together as a unit; irrigation hydrants; flush hydrants; post hydrants; grit separators for sewage collectors for cleaning and purifying water; devices for access to sewage disposal systems, namely, regulating valves for sewage disposal systems; plumbing fixtures for water supply networks in the nature of plumbing valves; shut-off valves for water supply networks in the nature of shower and tub control valves; butterfly valves, namely, manually operated plumbing valves; apparatus for water pump and water tank equipment, namely, plumbing bibs and pump protection valves; regulating apparatus for water supply, namely, regulating valves and flow limiters in the nature of hydraulic compensators and water tank taps; safety valves, adjustable opening valves for water supply networks; shutoff valves in the nature of shower and tub control valves; plumbing fittings, namely, curb cocks; apparatus for protecting water pipe networks, namely, air bleed valves being plumbing fittings for water distribution installations; air vents for water distribution installations for releasing air and regulating pressure in water installations

Rubber, gutta-percha, gum, asbestos, and mica; goods made from rubber, gutta-percha, gum, asbestos, and mica not included in other classes, namely, clutch linings, shock absorbers for pipes, sealing rings for use as connection seals, and insulating strips; weather stripping; joints for use in automobiles and homes; expansion joint fillers, non-metallic pipe jackets for use with water, sewer and industrial pipes; insulating paints; semi-processed plastics; packing and insulating materials; stopping materials, namely, pipe gaskets; non-metallic flexible pipes; non-metallic flexible tubes of plastic; non-metallic pipe fittings for flexible pipes for water, sewer, drainage and industrial use; joints, namely, pipe joint compound and joint packing for water pipes

Non-metallic building materials, namely, non-metallic rigid pipes; non-metal filtering tubes used to prevent storm water runoff pollutants from entering sewer systems; connectors in the nature of non-metal pipe fittings, couplings and joints; ground equipment in the nature of non metal in-ground sewage and water run-off basins, non-metal manhole covers, non-metal curb and roadway grating; siphons for use in the drainage of water; rainwater gullies in the nature of conduits for drainage and irrigation; and component parts for the fitting and installation of conduits for drainage and irrigation in the nature of fluid separators, pipe connectors, and tubing and tubing couplings for joining and terminating pipes; all these goods being rigid and not of metal