... Product DescriptionNdFeB, the third generation of rare earth permanent magnet,has the high remanence,high coercive force,high energy ... fields. 1.Material of NdFeB magnet: Magnet N-( N35-------N50), working temperature:80 degree Celsius.Magnet M-(N33M-----N48M), working temperature: ... Gold, Silver, Passivation, any coating as you like. 3.Magnet shape: Block,Ring, Disc, Cylinder, Rod,Bar, Cube,Sphere, ...