... ranges of 20~1000nm at your requirement. Usages metallic nano cobalt powder Fe,Cu,Ni,Zn,Ag,Sn,Bi,CoAppearance: Different ... , electrical appliances, machinery manufacturing, chemical and ceramic industry. Cobalt-based alloy or containing cobalt alloy steel used as important metal ... average particle size 20 to 300 nm different specifications of nano or super fine cobalt powder, also can do special ...