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Copper oxide ，manganese bioxide, vanadium pentoxide a
wholesaler	sd mining
contact person	sun zhenhao
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email	contact by email

We are a professional manufacturer and exporter of Copper oxide ，Manganese Bioxide, Vanadium Pentoxide and Ammonium Metavanadate. We can offer vanadium pentoxide with different purity: 98%,99%,

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