... 2.N50, 1"dia x 1/2" NdFeB Magnet, Black Epoxy Coating 3.Certificate:ISO9001:2000, SGS, CTI. Magnet(NdFeB magnet) is ... , UH )Coatings: Ni, Ni-Cu-Ni, Zn, white-blue Zn, Epoxy, Gold, and etc.Sizes: according to your requirementsShapes: disc, cylinder ...