6
Ring-shaped fittings of metal; Metal cylinders for compressed gas or liquids, sold empty; Ferrules of metal; Metal couplings for fire hoses; Expansion joints of metal for pipelines and ducts; Elbows of metal for pipes, including those of steel alloys and titanium; Fittings of metal for building; Pipe muffs of metal; Metal hose clamps; Junctions of metal for pipes; Rotating junctions of metal for pipes; Metal hose fittings; Pipes and tubes of metal; piping; Steel pipes; Branching tubes of metal for pipelines; Gutter pipes of metal; Drainage pipes of metal; Drain traps [valves] of metal; Hand-operated valves of metal (other than parts of machines); Metal gaskets; Rings of metal for use as pipe junction fittings
17
Rings of rubber; Sealing rings; Sealed water-tight rings for hydraulic tubes; Pipe-jointing compounds; flexible plastic conduits for plumbing use; Cylinder jointings; non-metallic gaskets; Pipe gaskets; Non-metallic tubing couplings; Waterproof packings; Waterproof packings, not of metal, for buildings; Expansion joint fillers; Pipe junction fittings; Pipe jackets, not of metal; Caulking materials; nonmetallic junctions for flexible pipes; Fittings, not of metal, for rigid pipes; Washers of rubber; Hose pipes made of rubber; Flexible hoses composed of plastics; Non-metal fuel oil hoses
35
Retailing, wholesaling and online sales of ring-shaped accessories of metal, rings of metal, cylinders of metal for gas or compressed liquids, sold empty; Retailing, wholesaling and online sales of ferrules of metal, joints of metal for pipes for fire hydrants, expansion joints of metal for conduits and ducts; Retailing, wholesaling and online sales of elbows of metal for pipes, including those composed of steel and aluminium alloys; Retailing, wholesaling and online sales of fittings of metal for building, pipe muffs of metal, clips of metal for hoses; Retailing, wholesaling and online sales of junctions of metal for pipes, rotating junctions of metal for pipes, junctions of metal for hoses, tubing and pipes of metal, steel pipes; Retailing, wholesaling and online sales of branching tubes of metal for pipelines, gutter pipes of metal, drain pipes of metal, drain traps (valves) of metal, hand-operated valves of metal (not being parts of machines); Retailing, wholesaling and online sales of rubber rings, water-tight rings, airtight stuffing rings for hydraulic tubes, rings of metal for use as pipe junction fittings; Retailing, wholesaling and online sale of compositions for joints for pipes, flexible ducts of plastic for hydraulic use, cylinder jointings, joints of metal, joints not of metal, pipe gaskets, joints for pipework, not of metal; Retailing, wholesaling and online sales of waterproof packings, waterproof packings, not of metal, for buildings, fillers for expansion joints, pipe junction fittings; Retailing, wholesaling and online sales of pipe muffs, not of metal, caulking materials, junctions, not of metal, for hoses, junctions, not of metal, for pipes; Retailing, wholesaling and online sales of washers of rubber, hoses of rubber, hoses of plastic, hoses, not of metal, for fuel oils