6
Metal building materials; Metal building materials; Ducts, Pipes, Bends (pipe -) of metal [other than parts of machines]; Adaptors for pipes [metal]; Wall ducts and parts therefor of metal; Repair material sets predominantly of metal for pipes and half-pipes
7
Machines and machine tools for the treatment of materials, in particular winders, pipe roll winders, winders for plastic pipes; Special-purpose machines, namely unwinders, rewinders
8
Hand tools, hand-operated, for structural engineering; Hand-operated repair and assembly apparatus, in particular cable duct/half-pipe assembly apparatus of metal
9
Cable ducts for electric and fibre optic cables; Microtubes (electricity); Distributing boxes; Cable duct installation panels (electric); Junction boxes; Optical couplers; Transducers, Including electro-optical and optoelectronic transducers; Diodes, Including light-emitting diodes, Organic light-emitting diodes, Photodiodes; Semiconductors; Optical lenses and Mirrors; Optical fibers, Including glass fibres and polymer fibres, Optical fibers; Signal cables for IT, audiovisuals and telecommunications, Including fibre-optic connectors, Junction sleeves for fibre optics; Optical apparatus and instruments, Including optical beam splitters
17
Flexible pipes, tubes, hoses, and fittings therefor, including valves; Joint packings; Caulking; Stopping materials; Insulation materials; Shaped parts (of rubber); Fittings for pipes; Pipe jackets {not of metal}; Couplings; Pipe insulation; Flexible pipes, not of metal; Collars of rubber for fastening pipes; Jackets [insulating] for pipes; Pipe joint tape; Pipe gaskets; Pipe joint compound; Pipe sealing compositions; Casings of rubber for tubes; Glands for pipes; Pipe insulation; Non-metallic couplings for pipes; Seals for pipe connections; Glands for pipes; Caulking; Flexible half-pipes, not of metal; Protective half-shells for pipes, not of metal; Microtubes, not of metal; Cable sleeves; Pipe bundles, not of metal; Seal plugs; Sealing caps; Sealing discs; Wall ducts of plastic; pipe joints; All of the aforesaid goods having securing properties, Not of metal
19
Building materials (non-metallic), In particular spacers for underground pipes and pipes installed in bridges; Pipes and tubes, and fittings therefor, including valves; Tube; Protective half-pipes for cables; Protective multi-pipes for cables; Protective pipe bends for cables, Protective articulated pipe bends for cables, All not of metal; Plastic pipes and fittings therefor; Plastic pipes and components therefor; Rigid plastic half-pipes