Architectural products having the appearance of dressed stone; articles of artificial stone for building purposes; articles of natural stone for building purposes; blocks made from natural stone; building elements of stone; building stone; split stone; capping stones for support posts; capping stones for wall panels; coloured stone materials for use in building; concrete building elements; concrete building panels; concrete paving stones; coloured stone materials for use in paving; construction materials of natural stone; coping stones; curtain wall facings made of natural stone; decorative paving stones; manufactured stone veneer; natural stone; natural stone for building purposes; natural stones (not precious); panelling elements made of natural stones; paving stones; porphyry (stone); stone for building; stone for walls; stone slate tiles; stone tiles; stone veneer; worked natural stone; building materials in the nature of slates for tiling; building materials made of rock fibres; building materials of mineral fibres; building products of slate; cladding, not of metal, for building; limestone products for use in building; non-metallic building materials for floors and flooring; non-metallic building materials for use in cladding; walling of non-metallic materials; internal wall cladding of non-metallic materials; non-metallic tiles for building; sandstone for building; granite; interior wall cladding of non-metallic materials; non-metallic cladding for facades; non-metallic cladding for walls; non-metallic panels for interior cladding on buildings; non-metallic panels for outer cladding on buildings; pebbles; slates for wall cladding; terrazzo; travertine