... -blue Zn, Epoxy, Gold, and etc.High Magnetic PerformanceHigh magnetic performanceApplication Sensors, motors, rotors, wind turbines,wind generators ... , speakers,loudspeakers, magnetic hooks, magnetic holder, filters automobiles and so on.CertificateISO9001: 2008 ... companies include Sony, Samsung, BYD, Media, Phillips and others.3. The quality will be guaranteed ...