... can make metallic nano cobalt powder Fe,Cu,Ni,Zn,Ag,Sn,Bi,Co in ranges of 20 ... ~1000nm at your requirement. Usages metallic nano cobalt powder Fe ... manufacturing, chemical and ceramic industry. Cobalt-based alloy or containing cobalt alloy steel used as important metal ... of sound, light, electricity and magnetism equipment. Cobalt is also an important part of permanent magnetic ...