Type: Coltan Columbite, Tantalite Ore
We Require The Following:
Latest SGS Or Laboratory Assay Report
Certificate of Origin (Rwanda or DRC)
FOB price .....show more
weather working day sshex Chemical Specifications : Al2O3 : 56 % min. Fe2O3 : 20 - 25 % typical SiO2 : 4 % max. CaO : 0,4% max. TiO2 : 3,5% max. LOI :.....show more