Section 13 Articles of stone, plaster,cement,asbestos, mica or similar materials; ceramic products; glass and glassware 70 Glass and glassware 70 04 Drawn/blown glass, in sheets, not otherwise worked Commodity Code Description 70 04 20 Unworked drawn/blown glass, coloured, opacified,flashed or with absorbant ....la 70 04 90 Unworked drawn/blown glass (excl. coloured, opacified, etc)