1.Grade: N35-N52, N35M-N50M, N35H-N48H, N35SH-N45SH, N28UH-N42UH, N28EH-N40EH, N28AH-N38AH. 2.Shape: cylinder 3.Coating:Ni, Ni-Cu-Ni, Zn(Cr3+), Tin, Epoxy, Ni-Ag, Ni-Au, Passivation, Parylene, etc. 4.Size:Customized size per your requirements. 5.Application:Motor assemblies, Automobile,Wind generator,MRI,Speaker, Sound Equipment Earphone microphone ,Sensor, Scanner, Camera Lens, Embedded Object,Magnetic separators, linear actuators, assemblies, servo motors, DC motors (automotive starters), computer rigid disc drives,