TARIC 3824.99.96.74 — Mixture with a non-stoichiometric composition: -|with a crystalline structure, -|with a content of fused magnesia-alumina spinel and with admixtures of silicate phases and aluminates, at least 75|% by weight of which consists of fractions with a grain size of 1-3|mm and at most 25|% consists of| fractions with a grain size of 0-1|mm | TariffCodex