Coloured glass for windows; door frames, not of metal; doors made of glass for buildings; doors made of plastic for buildings; fitted windows made of non-metallic materials; folding doors, not of metal; non-metallic external door frames; non-metallic external doors; non-metallic frames for doors; non-metallic frames for glazed doors; non-metallic frames for glazed windows; non-metallic frames for windows; non-metallic panels for doors for buildings; non-metallic sliding doors (other than for furniture or for vehicles); non-metallic window casements; non-metallic window frames; non-metallic window sashes; non-metallic windows; patio doors (non-metallic frame); patio doors made of non-metallic materials; plastic sections used as inserts in windows; plastic window frames; ready made door frames made of plastic; ready made door frames made of polyvinylchloride; ready made doors made of plastic; ready made doors made of polyvinylchloride; ready made window frames made of plastic; ready made window frames made of wood; ready made windows made of plastic; ready made windows made of polyvinylchloride; roof windows made of plastics; safety fittings of synthetic plastics for doors; safety fittings of synthetic plastics for windows; window frames, not of metal; windows made of laminated safety glass for buildings; windows made of plastic (for buildings); windows made principally of glass; windows, not of metal

concrete; concrete slabs; precast concrete floor slabs; precast concrete building elements; concrete for pouring; ready to use concrete; kerb units made of concrete; premixed concrete base; architectural concrete products; concrete building panels; concrete beams; concrete reinforced with synthetic fibres; concrete provided with pattern imprinted surface finishes; reinforced concrete