When having questions on columbite and tantalite ore, please send your inquury!
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06/02/2010
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06/02/2010
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Offer Description - columbite and tantalite ore
We have excellent Coltan for sale to serious buyers. We produce coltan which comes as a result of the combination of columbite and tantalite. This combination produces a stronger and more valuable metal coltan. We are interested in serious
