... 9001:2000 and ISO 14001:2004 N48H 12.3*9.5*0.7 magnet Quick Details Origin: Zhejiang China ( ... 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; ... Coating: Ni, Zn, gold, copper, epoxy and so on;7) Application: sensors, motors, rotors, wind turbines,wind generators, loudspeakers ...