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 15 Articles of stone or of other mineral substance(incl.carbon fibres etc), nes or included 68 15 10 Non-electrical articals of graphite or other carbon Commodity Code Description 68 15 10 00 Non-electrical articals of graphite or other carbon