... Zn,Epoxy,Telfon 4. Quality 1st Strong Neodymium NdFeB magnetMaterial: NdFeB Magnet, Neodymium Magnet, Permanent Magnet, Rare-earth MagnetCoating: Zinc, Nickel, Epoxy ... , Nickel-copper-nickel, Gold-----------------------------------------------------------------------------------Advantages:1. We have been in this ...