Section 13 ARTICLES OF STONE, PLASTER,CEMENT,ASBESTOS, MICA OR SIMILAR MATERIALS; CERAMIC PRODUCTS; GLASS AND GLASSWARE 70 Glass and Glassware. 70 02 GLASS IN BALLS, RODS OR TUBES, UNWORKED Commodity Code Description 70 02 10 Balls 70 02 20 Rods 70 02 31 Of fused quartz or other fused silica 70 02 32 Of other glass having a linear coefficient of expansion not exceeding 5 x 10- 70 02 39 Other