HS6 Subheading
283330
Alums
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Other subheadings in this heading
283311Sodium sulphates; disodium sulphate283319Sodium sulphates; other than disodium sulphate283321Sulphates; of magnesium283322Sulphates; of aluminium283324Sulphates; of nickel283325Sulphates; of copper283327Sulphates; of barium283329Sulphates; n.e.c. in item no. 2833.2283330Alumscurrent283340Peroxosulphates (persulphates)