... ,like Nickel,Nickel-Copper-Nickel,Znic,Black&Grey epoxy coating,Aluminium coating,Tin,Silver ect coating.It is with high stability ... shapes that you designed could be processed,Block,Disc,Segment,Ring,Horseshoe shape,block with concave holes,Disc with countersink ... ,DC,servo motors (with segment magnets).Speaker parts (with ring magnet).Sensors part.Magnetic coupling(with segment magnets)Magnetic chuck ...