700232

Of other glass having a linear coefficient of expansion not exceeding 5x10-6 per Kelvin within a temperature range of 0oC to 300oC:

70023210

Of a kind used to manufacture vacuum tubes

70023220

Other, of clear neutral borosilicate glass, with a diameter of 3 mm or more but not more than 22 mm

70023290

Other

700239

Other:

70023910

Of a kind used to manufacture vacuum tubes

70023920

Other, of clear neutral borosilicate glass, with a diameter of 3 mm or more but not more than 22 mm

70023990

Other

7003

Cast glass and rolled glass, in sheets or profiles, whether or not having an absorbent, reflecting or non-reflecting layer, but not otherwise worked.

700312

 Non-wired sheets:Coloured throughout the mass (body tinted), opacified, flashed or having an absorbent, reflecting or non-reflecting layer:

70031210

Optical glass, not optically worked

70031220

Other, in square or rectangular shape (including with 1, 2, 3 or 4 corners cut)