Classification Information
Granite; Quartz; Slate; Artificial stone; Marble; Rock crystal; Stones; Tiles, not of metal, for building; Wall tiles, not of metal; Works of art of stone, concrete or marble
Nonmetallic Building MaterialsGranite; Quartz; Slate; Artificial stone; Marble; Rock crystal; Stones; Tiles, not of metal, for building; Wall tiles, not of metal; Works of art of stone, concrete or marble
Nonmetallic Building Materials