9001: optical fibre, cables; sheets & plate of polarizing mat; lenses/prism

900110: optical fibs, optical fib bundles & cables, oth than those of headg 8 900120: Sheets and plates of polarizing material 900130: Contact lenses 900140: Spectacle lenses of glass 900150: Spectacle lenses of other materials 900190: Prisms, mirrors & other optical elements of any material, unmounted, 9001: optical fibre, cables; sheets & plate of polarizing mat; lenses/prism