Section 13 ARTICLES OF STONE, PLASTER,CEMENT,ASBESTOS, MICA OR SIMILAR MATERIALS; CERAMIC PRODUCTS; GLASS AND GLASSWARE 69 CERAMIC PRODUCTS. 69 02 SIMILAR SILICEOUS EARTHS. 69 02 90 OTHER REFRACTORY BRICKS/BLOCKS/TILES & SIM. REFRACTORY CERAMIC CONSTRUCT.. Commodity Code Description 69 02 90 00 OTHER REFRACTORY BRICKS/BLOCKS/TILES & SIM. REFRACTORY CERAMIC CONSTRUCT..