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 10 Oxides of boron; boric acids 28 10 00 Oxides of boron; boric acids 28 10 00 00 Oxides of boron; boric acids Commodity Code Description 28 10 00 00 000 Oxides of boron; boric acids
