Section 06 Products of the chemical or allied industries 28 Inorganic chemicals; organic or inorganic compounds of precious metals, of rare - earth metals, of radioactive elements or isotopes 28 18 Artificial corundum; aluminium hydroxide; aluminium hydroxides Commodity Code Description 28 18 10 Artificial corundum, whether or not chemically defined 28 18 20 Aluminium oxide, other than artificial corundum 28 18 30 Aluminium hydroxide
