Hard ferrite, also called ferrite magnets, the electrical characteristics for, the resistivity of ferrite than metal
alloy magnetic materials, and they are more High dielectric performance. Ferrite magnetic can also have a higher performance in the high
freqency magnetic condutivity. Therefore, ferrite has become weak electric fields using high frequency wide range of nonmetallic magnetic
material way. Now hard ferrite is widely used in all kind of electronic, electrical, receiver, sensors, medical apparatus, microwave communication
equipment, etc...