... ROSH NdFeB is the metal neodymium, iron, boron and other trace metals made alloy magnet, is the strongest magnetic rare earth ... It is a high energy product (8MGOe-55MGOe) and good magnetic strength.Available Property: N27, N30, N33, N35, N38, ... Spray Test, PCT Test, HAST Test, Metallographic analysis, Magnetic Properties Test, Oxygen Test, etc.Magnetic Properties of NdFeb Magnets Permanent Magnet ...