... Ni,Epoxy Applicationmachine,medicine,package box Sintered NdFeB magnet is much stronger than alnico magnet, ferrite magnet, ... Neodymium Magnets with plating.We produce ndfeb magnet in many shapes and size, usually make strong ... to the ring magnet ,which can be be used in medicine ,machine ,motors ,pakaging box and so ... other requirements. Sintered ring NdFeB magnets used in machine,medicine and etc.