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 68 10 91 Prefabricated structural components for building or civil engineering 68 10 91 00 Prefabricated structural components for building or civil engineering Commodity Code Description 68 10 91 00 000 Prefabricated structural components for building or civil engineering
