Section 13 ARTICLES OF STONE, PLASTER, CEMENT, ASBESTOS, MICA OR SIMILAR MATERIAL S; 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 substances (including carbon fibres, artic 68 15 11 Carbon fibres Commodity Code Description 68 15 11 00 Carbon fibres