NdFeB magnet is an alloy magnet made from Nd,Fe,B and other metal elements.It is with the strongest magnetism,good coercive force1) Material: Sintered Neodymium-Iron-Boron;2) Temperature: the max operation temp is up to 200 degree centigrade or 380 curie temperature; 3) Grade:N33-N52,33M-48M,33H-48H,30SH-45SH,30UH-38UH and 30EH-35EH;4) Shape: ring,block,disc,bar and so on;5) Size: according to customers' request;6) Coating: Ni, Zn, gold, copper, epoxy and so on;7) Application: sensors, motors, rotors, wind turbines,wind generators, loudspeakers, magnetic hooks, magnetic holder, filters automobiles and so on;