... 1.Introduction: neodymium magnet is well known as the third generation of rare earth permanent magnet2.Material Content of ... National Inindustrial Standard from N35, N38, N40, N42, N45, N48, N50,N52, N35M,N38M,N40M,N42M,N45M,N48M ... magnets called as neodymium magnet, ndfeb magnets, strong magnets permanent magnets, rare earth magents, and ferrite magnet, Alnico magnet, Smco magnet, rubber magnets, etc ...