Section 13 Articles of stone, plaster,cement,asbestos, mica or similar materials; ceramic products; glass and glassware 70 Glass and glassware 70 05 Float glass and surface ground or polished glass, in sheets, whether or not having an absorbent, reflecting or non-reflecting layer, but not otherwise worked 70 05 21 - - Coloured throughout the mass (body tinted), opacified, flashed or merely surface ground Commodity Code Description 70 05 21 00 - - Coloured throughout the mass (body tinted), opacified, flashed or merely surface ground