... 2)Grade:N,M,SH,UH,EH. 3)ISO9001,SGS,ROHS 4)Coating:Ni, Ni-Cu-Ni, Zn, etc Permanent neodymium magnet Specifications ... SGS,ROHS certificates system, 2.Typical Coat: Ni, Ni-Cu-Ni, Zn, Tin, Epoxy, Ni-Ag, Ni-Au, etc.Grade Available:N35-N52 working ... : Length×Width×Thickness/ Tolerance, Edge degreeTypical Coat: Ni, Ni-Cu-Ni, Zn, Tin, Epoxy, Ni-Ag, Ni-Au, etc. Applications: Wind Power Generators, Motor ...