1).Shape:stick,block,ring,disc and so on... 2).Certificate: ISO9001:2008 3).Grade: ... -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 ... , magnetic hooks, magnetic holder, filters automobiles and so on; Large Ring Magnets