6
Building and construction materials and elements of metal; 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
17
Flexible pipes, tubes, hoses, and fittings therefor, including valves; Seals, sealants and fillers; Insulation materials; Plastics; 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 muffs, all of the aforesaid goods with sealing properties, not of metal
19
Building materials (non-metallic), in particular spacers for buried 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 of the aforesaid being non-metallic; Plastic pipes and fittings therefor; Plastic pipes and components therefor; Rigid plastic half-pipes