... safe delivery & excellent service N42 8*5mm strong neodymium magnet These magnets will have approximately 5150 ... -Vacuum sintering-Maching-Plating -Inspection-PackingMagnetic propertiesSuper strong magnetic force and intrinsic coercive force. Good ... apparatus many industrial area, like speakers, headphone, mobile phone, receiver, microphone, audio equipment, motors, wind generators, sensors, leather ...