... make nano nickel particles Fe,Cu,Ni,Zn,Ag,Sn,Bi ranges of 20~300nm at your requests. nano nickel particles ... widely used in seal shock absorption, medical equipment, acoustic adjustment, optical display, etc. Efficacious catallyzer: Due to its large surface and ... box. nano nickel particles Fe,Cu,Ni,Zn,Ag,Sn,Bi