... , Tin, Ni+Cu+Ni and Cr3+ZnSize available: 0.5-200mmShape: Block, Square, Disc, Cylinder, Ring, Rod, Bar, Stick, ... , Mobile Phone, Automobile, Motor, Engines, Printer, Toys, instrument and detecter, Sensors, Generator, Windmill, VCD, DVD, Laser head, Radar ... ApparatusSincerely welcome you to visit our factory and cooperate with esteemed OEM!! round disc permanent magnets/ring magnets/neodymium magnets