... make metallic nano cobalt powder Fe,Cu,Ni,Zn,Ag,Sn,Bi,Co in ranges of 20~1000nm at ... . Usages metallic nano cobalt powder Fe,Cu,Ni,Zn,Ag,Sn,Bi,CoAppearance: Different particle size nano cobalt powder ... high alloy and anticorrosive alloy, also used in the colored glass, pigment, enamel and catalyst, desiccant, etc.Chemical composition GradeChemical ... . metallic nano cobalt powder Fe,Cu,Ni,Zn,Ag,Sn,Bi,Co