block NdFeB magnet high Br, Hcb & (BH)max, block shape, N35-N52, 35M-48M, 30H-45H, 30SH-42SH, 28UH-35UH, 28EH-30EH. NdFeB block magnet 1) Superior magnetic properties than other magnets2) Higher unit magnetic properties3) Smaller size and lighter weight in designing devices4) Mostly an iron based alloy, NdFeB type rare earth magnet is much more prone to surface oxidation or rust, and elimination. ...