Section 06 Products of the chemical or allied 28 Inorganic chemicals; organic or inorganic compounds of precious metals, of rare earth metals, of radioactive elements or isotopes 28 25 Hydrazine...and inorganic salts; inorganic bases; metal oxides..., nes 28 25 90 Other 28 25 90 00 Other Commodity Code Description 28 25 90 00 00 Other