... )in good quality and price 3)has strong magnetic force Large Ring magnet N35,N38,N40,N42,N45,N48,N50,N52(M ... ,H,SH,UH,EH) etc.2. Working temperature for Ring shape NdFeB magnets:from 80 centigrades to 200 centigrades.3. Can be ... appliances,microphone parts,transmission equipments...Features of NdFeB magnet :Neodymium magnets are mainly made from neodymium ,iron, and boron. It is ...