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Columbite tantalite COLTAN >

Columbite tantalite COLTAN The Engineer posted on October 17 Columbite Tantalite is a dull metallic ore found in major quantities in the eastern areas of Congo

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Eamc Austria supplier of tantalite coltan ta205 Tantalum COLTAN ORE Ta2O5 Commodity Ta2O5 content from 28% to 40% Quantity 5 10 MT per month with possibility

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