7
Welding machines; Plastics welding machines
17
Gaskets; Water-tight rings; Plastic substances, semi-processed; Pipe muffs, not of metal; Fittings, not of metal, for rigid pipes; Flexible hoses, not of metal; Junctions, not of metal, for pipes; Fittings, not of metal, for flexible pipes; Flexible pipes, tubes, hoses and fittings therefor (including valves), and fittings for rigid pipes, all non-metallic; Non-metallic couplings for tubes; Non-metallic couplings for pipes; Non-metallic couplings for tubes; Non-metallic fittings for pipes; Non-metallic couplings for tubes; Non-metallic couplings for pipes; Junctions, not of metal, for pipes; Non-metallic couplings for pipes; Non-metallic couplings for pipes; Pipe fittings [junctions] (non-metallic -); Pipe insulation; Semi-worked plastic substances; Plastic material in extruded form for use in production; Plastics in the form of sheets, films, blocks, rods and tubes; Recycled plastics; Recycled compound plastics; Recycled compound plastics for use in manufacture; Recycled plastics; Inflatable articles for sealing pipes to allow welding; Inflatable articles for sealing enclosed chambers to allow welding; Threads of plastic for soldering
19
Gutter pipes, not of metal; Branching pipes, not of metal; Rigid pipes for building, Not of metal, in particular of plastic; Drain pipes, not of metal; Penstock pipes, not of metal; Construction elements of plastic; Plastic conduits for irrigation; Rigid pipes, not of metal, Non-metallic valves; Drainage pipes, not of metal; Sewer pipes (Non-metallic -)