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 50 Copper oxides and hydroxides 28 25 50 00 Copper oxides and hydroxides Commodity Code Description 28 25 50 00 00 Copper oxides and hydroxides
