... force, high energy and high performance.Neodymium permanent magnets (Nd-Fe-B) are composed of neodymium, iron, boron and a few transition ... kinds of high quality NdFeB magnets with various grades, size and shapes (block, arc, cylindrical, disk, ring, etc...) according to ... -42UH, 28EH-38EH and 30VH-33VH.Shape of MagnetsBlock, Disc, ring, Segment, Arc, Cylinder, Round, etc.CoatingZn, Ni, NiCuNi, Sliver ...