The Combined Nomenclature (CN), v1:2020
4412 33: Plywood consisting solely of sheets of wood <= 6 mm thick, with at least one outer ply of non-coniferous wood of the species alder, ash, beech, birch, cherry, chestnut, elm, eucalyptus, hickory, horse chestnut, lime, maple, oak, plane tree, poplar, aspen, robinia, tulipwood or walnut (excl. of bamboo, with an outer ply of tropical wood, and sheets of compressed wood, cellular wood panels, inlaid wood and sheets identifiable as furniture components)
https://www.dst.dk/en/Statistik/dokumentation/nomenklaturer/kn?id=82f0fee5-2769-43bc-83fc-79117ee135ae