Section 06 PRODUCTS OF THE CHEMICAL OR ALLIED 28 Inorganic chemicals;organic or inorganic compounds of precious metals, ofrare-earth, of radioactive elements or of isotopes 28 18 ALUMINIUM OXIDE (INCL. ARTIFICIAL CORUNDUM); ALUMINIUM HYDROXIDE Commodity Code Description 28 18 10 Artificial corundum, whether or not chemically defined 28 18 20 Aluminium oxide (alumina), other than artificial corundum 28 18 30 Aluminium hydroxide