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