Permanent magnet disc 1.Certification: ISO9001:ROHS 2.Coating: Nickel,Znic,Expoy,etc Free sample Permanent magnet disc 1. Materials: Neodymium-Iron-Boron;2. Technology: Utilizes new Sintered NdFeB magnet techniques and equipment such as strip casting, HDDR technology; 3. Magnetic properties: High coercive force, the max operation temp is up to 200 degree centigrade or 380 curie temperature; 4. ...