... third generation of rare-earth permanent magnets and the most powerful and advanced commercialized permanent magnet today. NdFeB has high coercive ... of high quality NdFeB magnets with various grades, size and shapes (block, arc, cylindrical, disk, ring, etc...) according to the ... -42UH, 28EH-38EH and 30VH-33VH.Shape of MagnetsBlock, Disc, ring, Segment, Arc, Cylinder, Round, etc.CoatingZn, Ni, NiCuNi, ...