ACTIVE PHOTOCATALYTIC CERAMIC

Ceramic floor tiles; Ceramic roofing tiles; Ceramic tiles; Ceramic tiles for tile floors and coverings; Ceramic wall tiles; Concrete; Concrete blocks; Tile flooring, not of metal; Tiles of ceramic for wall, floor or ceiling; Blocks of concrete; Floor tiles, not of metal; Natural stone and stone tile; Non-metal tiles; Non-metal tiles for walls, floors or ceilings; Non-metal ceiling tiles; Non-metal floor tiles; Non-metal roofing tiles; Non-metal slabs of concrete and clay; Non-metal wall tiles; Paving tiles; Roofing tiles, not of metal; Wall tiles, not of metal; all of the foregoing being made in whole or substantial part of photocatalytic ceramic