Section 13 ARTICLES OF STONE, PLASTER,CEMENT,ASBESTOS, MICA OR SIMILAR MATERIALS; CERAMIC PRODUCTS; GLASS AND GLASSWARE 70 GLASS AND GLASSWARE 70 18 GLASS MICROSPHERES NOT EXCEEDING 1 MM IN DIAMETER. Commodity Code Description 70 18 10 GLASS BEADS, IMITATION PEARLS, IMITATION PRECIOUS OR SEMI-PRECIOUS 70 18 20 GLASS MICROSPHERES NOT EXCEEDING 1 MM IN DIAMETER 70 18 90 GLASS EYES