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 25 Hydrazine...and inorganic salts; inorganic bases; metal oxides, hydroxides and peroxides 28 25 50 Copper oxides and hydroxides 28 25 50 00 Copper oxides and hydroxides Commodity Code Description 28 25 50 00 000 Copper oxides and hydroxides
