... mm and available in disc,cylinder,block w/zn,Ni, neodymium block magnets/permanent magnets/ motor magnets/magnets for wind turbine 1. NdFeB Rare Earth Magnet ... . The main Applications of magnetsNdFeB, AlNiCo & SmCo magnets are found wide application in:Acoustics: speakers, microphone; ... are all available per your request. block neodymium strong magnets/neocube magnets/magnets for wind turbine