90 (01/1988-..) Optical, Photographic, Cinematographic, Measuring, Checking, Precision, Medical or Surgical Instruments and Apparatus, Parts and Accessories Thereof

9001 Optical fibres and optical fibre bundles, optical fibre cables (excl. made up of individually sheathed fibres of heading 8544), sheets and plates of polarising material, lenses, incl. contact lenses, prisms, mirrors and other optical elements of any material, unmounted (excl. such elements of glass not optically worked)