The Combined Nomenclature (CN), v1:2025
8405 90 00: Parts of producer gas or water gas generators and acetylene gas generators or similar water process gas generators, n.e.s.
https://www.dst.dk/en/Statistik/dokumentation/nomenklaturer/kn?id=3297a864-18b0-4927-8f75-9f2fa29c9c69