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Harmonized System
Section VI > Chapter 28 > Heading 2818
Artificial corundum, whether or not chemically defined; aluminium oxide; aluminium hydroxide.
Section VI > Chapter 28 > Heading 2818 > 2818.10
Artificial corundum, whether or not chemically defined
Section VI > Chapter 28 > Heading 2818 > 2818.20
Aluminium oxide, other than artificial corundum
Section VI > Chapter 28 > Heading 2818 > 2818.30
Aluminium hydroxide
Section VI > Chapter 28 > Heading 2819
Chromium oxides and hydroxides.
Section VI > Chapter 28 > Heading 2819 > 2819.10
Chromium trioxide
Section VI > Chapter 28 > Heading 2820
Manganese oxides.
Section VI > Chapter 29 > Heading 2911
Acetals and hemiacetals, whether or not with other oxygen function, and their halogenated, sulphonated, nitrated or nitrosated derivatives.