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 06 SLAG WOOL, ROCK WOOL...; EXFOLLATED VERMICULITE, EXPANDED CLAYS... 68 06 90 Other Commodity Code Description 68 06 90 00 Other