Section 13 Articles of stone, plaster,cement,asbestos, mica or similar materials; ceramic products; glass and glassware 69 Ceramic products 69 02 Refractory bricks, blocks, tiles... (excl. siliceous fossil meal/earth) 69 02 20 Containing by weight more than 50 % of alumina (Al2O3), of silica (SiO2) or of a mixt Commodity Code Description 69 02 20 00 Containing by weight more than 50 % of alumina (Al2O3), of silica (SiO2) or of a mixt
