Section 13 Articles of stone, plaster,cement,asbestos, mica or similar materials; ceramic products; glass and glassware 68 Articles of stone, plaster, cement, asbestos, mica or similar materials 68 04 Millstones, grindstones... of natural stone..., for grinding, etc 68 04 30 Hand sharpening or polishing stones Commodity Code Description 68 04 30 00 Hand sharpening or polishing stones
