Section 13 Articles of stone, plaster,cement,asbestos, mica or similar materials; ceramic products; glass and glassware 70 Glass and glassware 70 19 Glass fibres (including glass wool) and articles thereof (for example, yarn, rovings, 70 19 90 Asphalt or coal-tar impregnated glass-fibre outerwrap of a kind used for pipe 70 19 90 40 Asphalt or coal-tar impregnated glass-fibre outerwrap of a kind used for pipe Commodity Code Description 70 19 90 40 00 Asphalt or coal-tar impregnated glass-fibre outerwrap of a kind used for pipe