... make metallic nano cobalt powder Fe,Cu,Ni,Zn,Ag,Sn,Bi,Co in ranges of 20~1000nm at your ... Usages metallic nano cobalt powder Fe,Cu,Ni,Zn,Ag,Sn,Bi,CoAppearance: Different particle size nano cobalt powder is black ... , good sintering contraction.Package: antistatic plastic bag packing, 100 ~ 1000 g points into the metal box bag.Can produce average ... . metallic nano cobalt powder Fe,Cu,Ni,Zn,Ag,Sn,Bi,Co