Section 13 Articles of stone, plaster,cement,asbestos, mica or similar materials; ceramic products; glass and glassware 68 Articles of stone, plaster, cement, asbestos, mica or similar materials 68 10 Articles of cement, of concrete or of artificial stone whether or not reinforced Commodity Code Description 68 10 11 Building blocks and bricks 68 10 19 Other 68 10 91 Prefabricated structural components for building or civil engineering 68 10 99 Other
