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 05 Natural or artificial abrasive powder or grain, on a base of textile material, o Commodity Code Description 68 05 10 68 05 20 68 05 30