The Sintered NdFeB has the high remanence, high coercive force, high energy product and high perfor mance/cost ratio, It is easily formed into various sizes, and widely used in mini-motors, meters, senso -rs, sound device, magnetic suspension system, magnetic transmission machine and iatrical appara -tus and other applications. It is prone to corrosion in humid environments, It usually need surface trea -tment according to customer's requirements to protect magnet. We can offer the coating included: Zinc, Nickel, Silver, Gold-plating, Passivation, Phosphor and Spray Epoxy Resin.