... years production experience. c): Coating: Ni,NICUNI,Zn,Silver,Gold,Phosphate etc Details about our neodymium magnet:a/ Our capacity of ... , Zn, Blie Zn,Color Zn, Zn3+Cr, gold, sliver, epoxy, phosphate, passivate.d/ Grades: N35-N52, N35M-N50M, N30H-N48H,N30SH ...