chang zhou shan feng chemical co
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Changzhou ShanFeng Chemical Company specially on ethylenediamine and its derives,the following products can be offerred to customer: Hydroxyethyl ethylenediamine、triethylenediamine、Piperazine Hexahydrate、Piperazine anhydrate、Ethylenediamine tetracetic acid(EDTA)and its disodium、 tetrasodium or ferric sodium saltin china.
