6
Swimming pools (metal structures); swimming pool enclosures of metal; swimming pool covers of metal; stepladders of metal; diving boards of metal; metal handles for raising swimming pool covers; transportable buildings of metal; reinforcing materials for building purposes (of metal); greenhouse frames of metal; greenhouses of metal, transportable; verandas of metal; common metals and their alloys; Building materials of metal; ironmongery of metal, non-electric; ironmongery; pipes and tubes of metal; scaffoldings of metal; grids and screens; doors of metal, frames, door cases and frames of metal, ironwork for doors, door fittings of metal, door panels of metal; windows of metal, window frames of metal; Shutters of metal; fences of metal; skylights of metal
19
Swimming pools (structures, not of metal); swimming pool enclosures, not of metal; swimming pool covers, not of metal; non-metallic transportable buildings; reinforcing materials, not of metal, for building; greenhouse frames, not of metal; greenhouses, transportable, not of metal; building materials (non-metallic); non-metallic rigid pipes for building; asphalt, pitch and bitumen; shutters, not of metal; doors, not of metal, door casings and frames, not of metal, windows, not of metal, window frames, not of metal; window glass, for building, building glass, safety glass, insulating glass; verandas, not of metal
20
Door fittings, not of metal
37
Construction, repair and installation of swimming pool enclosures; construction of swimming pools; information relating to construction, repair and installation of swimming pool enclosures