Permanent neodymium magnet 1)composite:Nd2Fe14B 2)Grade:N,M,SH,UH, ... )Coating:Ni, Ni-Cu-Ni, Zn, etc Permanent neodymium magnet Specifications:1.ISO9001:2008 and SGS,ROHS certificates system, 2 ... .Typical Coat: Ni, Ni-Cu-Ni, Zn, Tin, Epoxy, Ni-Ag, Ni-Au, etc.Grade Available:N35-N52 ... / Tolerance, Edge degreeTypical Coat: Ni, Ni-Cu-Ni, Zn, Tin, Epoxy, Ni-Ag, Ni-Au, etc. Applications: Wind Power ...