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Harmonized System
Section VI > Chapter 28 > Heading 2837
Cyanides, cyanide oxides and complex cyanides.
Section VI > Chapter 28 > Heading 2837 > 2837.1
Cyanides and cyanide oxides
Section VI > Chapter 28 > Heading 2837 > 2837.20
Complex cyanides
Section VI > Chapter 28 > Heading 2838
(deleted)
Section VI > Chapter 28 > Heading 2839
Silicates; commercial alkali metal silicates.
Section VI > Chapter 28 > Heading 2839 > 2839.1 > 2839.11
Sodium metasilicates