... 0.8high purity : uniform particle size, ball shape, dispersancy well, high temperature oxidation, good sintering contraction.Package: antistatic plastic bag packing ... average particle size 20 to 300 nm different specifications of nano or super fine cobalt powder, also can do special ... processing according to user requirements. metallic nano cobalt powder Fe,Cu,Ni,Zn,Ag,Sn,Bi,Co