Permanent Nd Magnet in Ring shape

Permanent Nd Magnet in Ring shape, it is very popular used in industrial Motor and Loudspeaker Acoustic Component applications. Permanent magnet, Ring magnet, Loudspeaker Magnet, NdFeB Magnet, Nd Magnet, Material: N35, N42, N45, N52, 50M, 38H, 40H, 42H, 48H, 50H, 42UH etc Application: Industrial Motor, Servo Motor, Acoustic Component, Loudspeaker etc Coating:Ni, Ni-Cu-Ni, Electroless Nickel, Zinc, Colored Zinc, Epoxy, Passivation, Phosphated, Everlube, Au, Ag, Sn etc. Standard sea or air packing, such as carton, wooden box, pallet etc.