Ring Ferrite Magnet 1. high working temperature 2. high corrosion resistance Ring Ferrite Magnet Our factory is a professional factory deal in all kinds of magnet, and export magnet to all over the world. Material: sintered ferrite magnet or ceramic magnetGrade: block, disc ring, arc and so onPayment terms: T/T, L/C, Western Union Our offer: high quality, best service, fast delivery.