... to manufacture these materials to customers' specifications.Product DescriptionMaterial Grade of NdFeB magnet: Magnet N-( N30,N33,N35, N38, N40, N42, N45, ... N33AH) working temperature:220 deg.Our factory can manufacture NdFeB magnet in various size, according to the customer's specificationSurface Treatments ... Silver, Passivation, and custom coating available upon request. cheap ndfeb permanent magnet