... is acceptable 2.fast delivery 3.quality according to ISO9001:2000,TS16949,RoHS. block ferrite magnet1.great for DC motor,auto application ... .Shape:arc,block5.custom design is acceptable.6.high resistance to demagnetization and oxidation, high temperature stabilitOur other service:a,we ... ,we can add your company label or logo on fans or packages.c.Any questions pls feel free to contact us. block ferrite ...