Super strong Disc Ndfeb Magnet Grade: N35-N52, 35M-50M, 33H- ... people .We have implemented a strict and complete quality control system, which ensures that each product can meet quality requirements of ... 380 curie temperature;3.Products manufactured according to ISO9001 quality system;4.Coating: Ni, Ni-Cu-Ni, Zn, Ag, Au and ...