The Combined Nomenclature (CN), v1:2018
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=bdccfab4-a71c-4f32-8b96-d3d9ed56013c