Section 13 ARTICLES OF STONE, PLASTER, CEMENT, ASBESTOS, MICA OR SIMILAR MATERIAL S; CERAMIC PRODUCTS; GLASS AND GLASSWARE 69 Ceramic products 69 09 Ceramic wares for laboratory, chemical or other technical uses; ceramic troughs, Commodity Code Description 69 09 11 69 09 12 69 09 19 69 09 90