... nano cobalt powder Fe,Cu,Ni,Zn,Ag,Sn,Bi,Co in ranges of 20~1000nm at ... metallic nano cobalt powder Fe,Cu,Ni,Zn,Ag,Sn,Bi,CoAppearance: Different particle size nano cobalt powder ... and electrical industry, used for making various components of sound, light, electricity and magnetism equipment. Cobalt is also ... packing, 100 ~ 1000 g points into the metal box bag.Can produce average particle size 20 to 300 ...