6
Metal building materials; Valves or sliding valves of metal, Grilles of metal, Duckboards of metal, Ladders of metal, Adjustment plates of metal, sticks of metal; Connecting pipes and tubes of metal relating to pipelines for the transport and distribution of cold and hot liquids of all kinds, gas and power, balancing apparatus; Containers of metal for radioactive waste, Fences of metal, Mesh of metal, Railroad ties of metal, Coatings of metal for pipes, Vats of metal, Manhole covers of metal
7
Sludge separators, De-oilers, Settlers; Particle settlers; Digesters, Filtering machines; Prefilters; Screen-cleaning machines, overflow machines, material separators; Fat and/or starch separators; Lamellar separators, hydrocarbon separators, degreasers; Pumps [machines], Fans for motors and engines
11
Waste-water sanitation plants, lifting posts; Fountains, not of metal; Sewage treatment microplants for sanitation purposes
19
Pipes and pipeline fittings, not of metal, for the transport and distribution of hot and cold liquids of all kinds, gas and power; Building materials (non-metallic); Foundations for lighting columns, casing boxes, technical walls, Window sills, Copings, cover caps, cover panels, brackets, Vêture (insulating cladding), Walkways, Sun protection roofs, nets, well rings, frameworks made in a single piece or various components, recesses, cavities, Tombstone stelae, Dispersion wells, furniture cineraria, culverts, All being non-metallic; Paving blocks, Edging, Kerb stones, Support rails, Pigeon holes, Chambers and Technical galleries; Drawing chambers, telecoms chambers, prefabricated shelters (for military and civilian purposes), Arch blocks, Retaining walls, Sidewalls, Modular elements for waste sorting, Acoustic baffles, Slabs, Non-metal gutters, Slabs of concrete and cement; Decking slabs, bridge slabs; Turf slabs, tree guards, storage tanks (not of metal), supply fittings for cisterns and wells, branch boxes (not of metal) for pipelines, devices not of metal for channelling and diverting surface water and waste water, structure approaches, water downpipes, cantilevering slabs, drainage slabs, partitions (not of metal) for storage purposes, tanks (not of metal), bridges and cornices (not of metal), pre-fabricated elements (not of metal) for cellars, radioactive waste containers, flue blocks, girders; Prestressed girders; Joists, Posts, Fences, Inspection ports, columbarium vaults, Floors of concrete, Ceiling slabs, prestressed floor support slabs, alveolate slabs, Pre-fabricated foundation pillars, All being non-metallic
42
Studies relating to pipeline networks