… Artificial corundum, whether or not chemically defined; aluminium oxide; aluminium hydroxide. …
Explanatory notes
… ‑ Artificial corundum, whether or not chemically defined; aluminium oxide; aluminium hydroxide. 2818.10 ‑ Artificial … oxide may contain small proportions of other oxides (e.g., titanium oxide, chromium oxide) either deriving from the …