Section 13 Articles of stone, plaster,cement,asbestos, mica or similar materials; ceramic products; glass and glassware 69 Ceramic products 69 07 Ceramic flags and paving, hearth or wall tiles; ceramic mosaic cubes and the like, whether or not on a backing; finishing ceramics 69 07 21 - - Of a water absorption coefficient by weight not exceeding 0.5% Commodity Code Description 69 07 21 00 - - Of a water absorption coefficient by weight not exceeding 0.5%