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 (other than microspheres of heading 70.18), rods or tubes, unworked. 70 02 31 Of fused quartz or other fused silica 70 02 31 00 Of fused quartz or other fused silica Commodity Code Description 70 02 31 00 000 Of fused quartz or other fused silica
