17
Non-metallic couplings for tubes; Joint connectors (Non-metallic -) for pipes; Junctions, not of metal, for flexible pipes; Fittings, not of metal, for rigid pipes; Pipe jackets, not of metal; Fittings, not of metal, for flexible pipes; Flexible plastic tubes, in particular made from glass fibre-reinforced plastic; Fittings [non-metallic] for flexible pipes; Flexible pipes, tubes, hoses and fittings therefor (including valves), and fittings for rigid pipes, all non-metallic
19
Rigid plastic tubes (other than in the form of parts for sanitary installations), in particular made from glass fibre-reinforced plastic; Non-metallic water pipes [other than parts of sanitary installations]; Drain pipes; Gutter pipes, not of metal; Branching pipes, not of metal; Penstock pipes, not of metal; Rigid pipes, not of metal [building]; Manhole covers, not of metal; Lenghtening pieces, not of metal, for chimneys; Lengthening pieces, not of metal, for chimneys; Chimneys, not of metal
20
Reservoirs, not of metal nor of masonry; Containers, not of metal [storage, transport]; Tanks, not made of metal nor of masonry
35
Wholesaling and retailing in relation to plastic tubes (fitted parts of machines), flexible plastic tubes, in particular made from glass fibre-reinforced plastic, rigid plastic tubes (other than in the form of parts for sanitary installations), in particular made from glass fibre-reinforced plastic, tanks, not of metal nor of masonry, containers, not of metal
37
Services for the repair of conduits; Servicing of conduits; Servicing of conduits; Pipe laying; Coating of conduits; Services for the lining of pipes; Maintenance and repair of pipes used in industrial equipment