... Holding Magnets, such as Square, Disc and Ring Holding Magnets, Hard Ferrite (Ceramic), Alnico, NdFeB and SmCo assemblies are specified for many ... all industries and enigneering. These magnets are made by setting ferrite, Alnico, NdFeB and SmCo magnet in steel parts (and/or ... some non-ferrite magnetic insulate materials, such as Brass and Aluminum), and are ...