... -48M,33H-48H,30SH-45SH,30UH-38UH and 30EH-35EH;4. Shape: ring,block,disc,bar and so on5. Size: according to customers ... , copper, epoxy and so on;7. Application: sensors, motors, rotors, wind turbines/wind generators, loudspeakers, magnetic hooks, magnetic holder, filters automobiles and so on .