... earth magnet2.Technology :Application of new sintered NdFeB magnet techniques and equipment like casting, HDDR technology3.grades:N33- N48, N35M ... (include sink hole), segment, tile, and ball types of magnets, and also include special magnetic-bar, magnet with ... area, like speakers, headphone, mobilephone, receiver, microphone, audio equipment, motors, wind generators, sensors, leather, toys, package ...