Heading 7004

Glass; drawn glass and blown glass, in sheets, whether or not having an absorbent, reflecting or non-reflecting layer, but not otherwise worked

700420 Glass; drawn and blown, in sheets, coloured throughout the mass (body tinted), opacified, flashed or having an absorbent, reflecting or non-reflecting layer, but not otherwise worked 700490 Glass; drawn and blown, in sheets, (other than glass coloured throughout the mass (body tinted), opacified, flashed or having an absorbent, reflecting or non-reflecting layer)