... bulk nanomaterial: Adopt the inert gas to make bulk copper nano composite material with powder metallury.Medicine append material: Ideal ... High purity, high uniformityof particle size, the ball shape, good dispersion, high temperature oxidation, small sintering shrinkage.Package: Two-double ... plastic bag with static-free,packets with 100-1000g in a metal box. nano copper particles Fe,Cu,Ni,Zn,Ag,Sn ...