1. Ceramic ferrite magnets 2.Material:Ferrite Permanent Magnet 3.Certificate:ISO9001,CE,ROHS,SGS Ceramic ferrite magnets Ferrite Magnet Material:Permanent MagnetFerrite Magnet, Rare earth magnetShape:Ring ... , Disk, Block, segment, ball, cylinder and as the request of clients.Grade:Y10T,Y20,Y25,Y30,Y30BH ... -2.77 26.0-30.0 3.3-3.8 Y30BH 380-390 3.8-3.90 223-235 2.80 ...