The Combined Nomenclature (CN), v1:2021
9612 10: Typewriter or similar ribbons, inked or otherwise prepared for giving impressions, whether or not on spools or in cartridges
https://www.dst.dk/en/Statistik/dokumentation/nomenklaturer/kn?id=6b82e360-3b3b-4ca9-8ead-47dd359f111d