The Combined Nomenclature (CN), v1:2020
8412 80 80: Engines and motors, non-electrical (excl. steam turbines, internal combustion piston engine, hydraulic turbines, water wheels, gas turbines, reaction engines, hydraulic power engines and motors, pneumatic power engines and motors, steam or other vapour power engines and electric motors)
https://www.dst.dk/en/Statistik/dokumentation/nomenklaturer/kn?id=82f0fee5-2769-43bc-83fc-79117ee135ae