nt magnet, rare earth magnet Technology: Utilizes new sintered ndfeb magnet techniques and equipment such as strip casting, hddr technology Magnetic properties: High coercive force, the max operation temp is up to 200 degree centigrade or 380 curie temperature; Grades: N35-n52, 33m-48m, 33h-48h, 30sh-45sh, 30uh-38uh and 30eh-35eh; Shapes and sizes: Disc, cylinder, block, cube.Ball.Ring and according to customers' request . Coatings: Nickel, zn, black epoxy, black nickel , nickel -cu-nickel, ag, au etc. Standard export carton