... : Sintered NDFEB MAGNET 2.Material grade required :N35 N38 N40 N 45 N48 N50 3.Shape :Ring ,Block ... Coatings and Shapes. Warmly welcome your inquiries!NdFeB magnet is made from Neodymium, Iron, Boron and ... it strong.1. General features of the NdFeB magnet:NdFeB Magnet Grades: N33, N35, N38, N40, N42, ... Ag, Au and other special platings and coatings Shape: arc, tile, square, cylinder and magnetic ring ...