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 11 Articles of asbestos-cement, of cellulose fibre-cement or the like 68 11 89 Tubes or pipes Commodity Code Description 68 11 89 10 Tubes or pipes 68 11 89 20 Tube or pipe fittings 68 11 89 30 Other articles, of a kind used for building construction 68 11 89 90 Other
