19 Granite; Gravel; Limestone; Macadam; Sand; Slate; Balustrades, not of metal; Bicycle parking installations, not of metal; Building stone; Burial vaults, not of metal; Busts of stone, concrete or marble; Chimney cowls, not of metal; Chimneys, not of metal; Cladding, not of metal, for building; Cornices, not of metal; Crash barriers, not of metal, for roads; Door frames, not of metal; Fireplace mantles, not of metal; Flashing, not of metal, for building; Floor tiles, not of metal; Floors, not of metal; Grave slabs, not of metal; Gutters, not of metal; Letter boxes of masonry; Lime building materials; Lintels, not of metal; Marble; Memorial plaques of stone; Monuments, not of metal; Natural stone; Non-luminous non-metal beacons; Non-metal bird baths being structures made of stone; Non-metal mosaic tiles for building; Parquet flooring; Paving blocks, not of metal; Paving slabs, not of metal; Refractory construction materials, not of metal; Roof flashing, not of metal; Slabs, not of metal, for building; Staircases, not of metal; Statues of stone; Statues of stone, concrete or marble; Street gutters, not of metal; Tile floorings, not of metal; Tiles, not of metal, for building; Tombs, not of metal; Tombstone plaques, not of metal; Wainscotting, not of metal; Wall claddings, not of metal, for building; Wall tiles, not of metal; Works of art of stone, concrete or marble