... Earth Magnets,Neodymium-Iron-Boron Magnets,Permanet MagnetsFeatures:The most powerful permanent magnet, offers a great return ... for cost & performance, have the highest field/surface strength(Br), high coercivity(Hc), can ... ,usualy supplied by plating (Nickel, Zinc, Passivatation, Epoxy coating, etc.).Applications:Sensors,motors,filter automobiles,magnetics holders,loudspeakers ...