Ferrite Magnet Ring Strontium (Sr) ferrite ring magnet has high curie temperature, strong anti-oxidation, big resistivity and strong c-oercive force. Ring magnet is mainly used for following motor: D.C motor Auto motor: rain scraper motor, cooling fan motor, window glasses lifting motor, automatic antenna motor, do-or lock control motor, steamer motor ect. Motorcycle motor: start motor and magnetic motor Frequency transducer motor: air condition motor, fridge c-ompressor motor, automatic washer motor Home appliance motor: home health device, electric equipment in kitche-n, electric fan and electric power toy.