... ,Sn,Bi,Co in ranges of 50~100nm at your requirement. nano zinc powder Fe,Cu,Ni,Zn,Ag,Sn,Bi,CoUsages metallicAppearance ... germs and viruses. The quantitative test shows that: in 5 min nanometer zno’s concentration is within 1%, the sterilization rate ... greatly in the capacity and lifetime of the dry battery.High grade, uniform particle size, polygon, good dispersity, grey to black ...