Material: sintered neodymium-iron-boron Temperature: maximum operating temperature is up to 220 or 380¡ãc curie temperature Grade: n35 to n52, m, h, sh, vh, uh, eh Shapes: cylinder, ring, tube block, disc, bar and other customized shapes Size: customized Coating: ni, zn, gold, copper, epoxy Applications: sensors, motors, rotors, wind turbines, wind generators, loudspeakers, magnetic hooks, magnetic holders, automobile filters and more Certificates and standards: iso9001, iso14001, sgs, rohs standards. 35*27*15mm