17
Plastics in the form of sheets, films, blocks, rods and tubes; Plastic substances, semi-processed; Pipes and/or tubes of plastic; Pipe fittings of plastic; Pipe and/or tube connectors of plastic; Pipe and/or tube couplings of plastic; Pipe and/or tube connections of plastic; Pipe and/or tube connecting parts of plastic; Pipe extensions of plastic; Pipe branch connections of plastic; Pipe seals of plastic; Compounds for jointing; Pipe sealing compositions; Packing material for forming seals; Waterproofing sheets and/or waterproofing film of plastic, other than for packaging; Film and sheets of plastic for lining containers, pipes, tanks and tunnels and for covering surfaces; Linings for containers, sheets and films of plastic for lining containers; Fasteners of plastic for fastening linings for containers, bands or profiles of plastic for fastening linings for containers; Flexible pipes, not of metal, Fittings, Profile bars; All the aforesaid goods of plastic
20
Pipe fasteners, connectors and holders, non-metallic; Pipe fastening sleeves of plastic; Clips of plastic for pipes and/or tubes; Pipe clamps of plastics; Fastening material for fastening foils and panels for cladding containers, tanks and tunnels and for covering surfaces, in particular fastening material of plastic having an electrically conductive body for fastening foils and panels of plastic by means of induction welding; Valves, fittings; All the aforesaid goods of plastic