... ,is the third generation of the rare-earth permanent magnets,Sintered Ndfeb is the strongest permanent ... operational temperature:up to 230c) ndfeb rare earth magnet rod Outsanding product:1)high performance:N52 ... :130c ,humidity 100%,vapor pressure 2.7 bar.20 days,average low weight loss less than ... 2 mg/cm2 ndfeb rare earth magnet rod applications:loudspeakers,motor assemblies,windmill, ...