The Combined Nomenclature (CN), v1:2018
8716 39 80: Trailers and semi-trailers for the transport of goods, used (excl. self-loading or self-unloading trailers and semi-trailers for agricultural purposes, tanker trailers and semi-trailers, and trailers and semi-trailers not designed for running on rails for the transport of highly radioactive materials [Euratom])
https://www.dst.dk/en/Statistik/dokumentation/nomenklaturer/kn?id=bdccfab4-a71c-4f32-8b96-d3d9ed56013c