Cobalt Board

Available: Cobalt Powder

Product:Coltan (columbite–tantalite ) now selling
Specs:Nb2O5 13.2% Sn 7.5% WO3 2.3%
Quantity:150 kgs
Weight:145 kgs
Price:500 US$
Terms:50% as products is register for shipping
More info:Our Coltan (columbite–tantalite ) is a dull black metallic ore from which the elements niobium (formerly “columbium”) and tantalum are extracted.
The niobium-dominant mineral in coltan is columbite, and the tantalum-dominant mineral is tantali

Posted: 2 August 2013, 14:33 GMT. Permalink