Harmonization System Code:284690
Carbohydrazide(1,3-diaminourea)
Europium Oxide
Erbium Oxide
Yttrium Oxide
Terbium Oxide
Neodymium Oxide
Samarium Oxide
Dysprosium Oxide
Praseodymium Oxide
Gadolinium Oxide
Lanthanum Oxide
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