... .fast delivery 3.quality according to ISO9001:2000,TS16949,RoHS. block ferrite magnet1.great for DC motor,auto application such as ... ,Si.Al,rare-earth metal.4.Shape:arc,block5.custom design is acceptable.6.high resistance to demagnetization and oxidation, high ... packages.c.Any questions pls feel free to contact us. block ferrite magnet