... impurities includes elements such as B,Al,Si,Cr,Mn,Fe,Co,Cu,Mo,W,P,C,S. We offer at ... /(m2/g)Bulk density/(g/cm3)FCuN -20 <30>200.04~5FCuN-50≥30~60>150.05~0.7FCuN-80≥60~100 ... with 100-1000g in a metal box. nano copper particles Fe,Cu,Ni,Zn,Ag,Sn,Bi