We can provide nano copper particles in ranges of 20~300nm at your requests. nano copper particles (Cu)The superficial ... to the kinds of machinery.Chemical: GradeChemical composition/ %O ImpuritiesCuFCuN-20<0.1<0.3marginFCuN-50<0.01<0.3marginFCuN-80 ... /nmSpecific surface area/(m2/g)Bulk density/(g/cm3)FCuN -20 <30>200.04~5FCuN-50≥30~60>150.05~0 ... a metal box. nano copper particles Fe,Cu,Ni,Zn,Ag,Sn,Bi