19 Non-metallic building materials, namely, tiles, panels for floors, flooring comprised of ceramic, marble, quartz, glass, stone, slate, granite, concrete, brick, limestone, lime, clay, and composite stone adapted for physical fitness activities, wall cladding, floors, and ceilings; non-metal building materials, namely, floor skirting boards; non-metal tiles and slabs of ceramic, marble, quartz, glass, stone, slate, granite, concrete, brick, limestone, lime, clay, and composite stone for building panels, counter tops, vanity tops, floors, stairs and walls