[ Extruded plastic in the form of sheets, films, blocks, rods and tubes; plastic substances, semi-processed; ] flexible pipes and tubes of plastic for plumbing purposes; flexible pipes and tubes of plastic for cooling ducts for use in industry and in public buildings being conduits; pipe fittings of plastic, namely, non-metal fittings for hoses; pipe and tube connectors of plastic for hoses; pipe and tube couplings of plastic for use with hoses for industrial applications; pipe insulating materials of plastic; pipe and tube connections of plastic for use with hoses for industrial applications; pipe and tube connecting parts of plastic for use with hoses for industrial applications; pipe extensions of plastic for use with hoses for industrial applications; pipe branch connections of plastic for use with hoses for industrial applications; pipe seals of plastic, namely, non-metal seals for industrial pipe connections; thermally pre-insulated thermoplastic flexible double pipes and mouldings for transport of coolants; compounds for jointing pipes; packing material for forming seals; waterproofing sheets and waterproofing film of plastic, other than for packaging for industrial purposes; 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, in particular for lining drinking water tanks; fasteners of plastic for fastening linings for containers, bands or profiles of plastic for fastening linings for containers, in particular for lining drinking water tanks, sold as an integral part of lining materials; flexible pipes, not of metal; fittings, namely, pipe fittings of plastics; profile bars for use with hoses for industrial applications; all the aforesaid goods of plastic; double pipe systems and pipes and fittings for use with pipes and hoses for industrial applications

Pipe fasteners, connectors and holders, [ non-metallic ] * non-metal *, namely, bolts, nails, rivets, screws; pipe fastening sleeves of plastic for industrial purposes; clips of plastic for pipes and tubes for industrial purposes; 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 being other than machine parts; all the aforesaid goods of plastic