... :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 ... Applications: Widely used in different applications, such as sensors, motors, rotors, wind turbines/wind generators, loudspeakers, magnetic hooks, ...