Non-metallic building materials, namely, floor tiles, wall tiles, paving tiles, roof tiles,decorative tiles not for use as building materials, namely, marble tiles, granite tiles, porcelain tiles,ceramic tiles, slate, marble paving tiles, granite paving tiles, limestone paving tiles, sandstone paving tiles, ceramic paving tiles; transportable buildings not of metal, monuments not of metal, stones for building, namely, natural stone, artificial stone, marble, granite, terrazzo stone, sandstone, slate, limestone, cast stone, asphalt paving compositions; stoneware, namely, porcelain and ceramic tiles; natural rock for use as building materials, sand for building, agglomerated stone materials for building; cladding, not of metal, for building; prefabricated mortar elements, rock materials for use as building materials, cement, mosaics made of natural stone, stone tile, marble tile, glass tile, ceramic tile; non-metal edgings of marble, granite, cast stone for use as building materials; raw material, namely, potters' clay