6
Common metals and their alloys; metal building materials; transportable buildings of metal; materials of metal for railway tracks; non-electric cables and wires of common metal; ironmongery of metal, non-electric; ironmongery; metal pipes; safes; ores; metal components for building; pipes and tubes, nozzles, pipework, pipe muffs of metal; gutters of metal; pipes of metal; junctions of metal for pipes; valves of metal (other than parts of machines); copper, unwrought or semi-wrought; copper rings; copper wire, not insulated
17
Rubber, gutta-percha, gum, asbestos, mica; plastics in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes, non-metallic, pipe muffs, junctions for pipes, non-metallic; fire hose; watering hose; connecting hose for vehicle radiators; hoses of textile material; products in plastic materials for packing and insulating; flexible pipes, not of metal
19
Building materials (non metallic), non-metallic rigid pipes for building; asphalt, pitch and bitumen; non-metallic transportable buildings; monuments, not of metal; chimney shafts; gutter pipes; drain pipes, non-metallic, gutters, non-metallic; water-pipes, not of metal; penstock pipes (non-metallic)