The Combined Nomenclature (CN), v1:2021
7315 89 00: Chain of iron or steel (excl. articulated link chain, skid chain, stud-link chain, welded link chain and parts thereof; watch chains, necklace
https://www.dst.dk/en/Statistik/dokumentation/nomenklaturer/kn?id=6b82e360-3b3b-4ca9-8ead-47dd359f111d