Shape: Customized (Block, Disc, Cylinder, Bar, Ring, Countersunk,Segment, Hook,Trapezoid, irregular shapes, etc) Performance: N52/Customized (N33 N35 N38 N40 N42 N45 N48 N50 N52......) Coating: Ni-Cu-Ni,Nickel Customized(Zn,Ni-Cu-Ni,Ni,Gold,Silver,Copper.Epoxy,Chrome,etc) Magnetization: Thickness Magnetized, Axially Magnetized,Diametrally Magnetized, Multi-poles magnetized,Radial Magnetized.(Customzied specific requirements magnetized) Grade: Max. Operating Temperatures: N35-N525 80℃(176°F) N30M-N52M 100℃(212°F) N30H-N52H 120℃(248°F) N30SH-N52SH 150℃(302°F) N28UH-N45UH 180℃(356°F) N28EH-N42EH 200℃(392°F) N30AH-N38AH 240℃(472°F)