... high quality and low price 4. good performance Rare earth magnet ball Shape: Arc(segment), Block, Cube, Cylinder, Disc, Ring ... , Sphere Material grade or magnetic propertes for sintered magnet:Normalgrade:N35~N50,N35M~N48M,N33H~N45H,N30SH~N42SH ... are professional factory produce Magnet, NdFeB Magnet, permanent magnets, motor magnet, rare earth magnets, Neodymium magnet,magnetWe also produce according ...