... prevent corrosion,Nickel-Copper-Nickel (Ni-Cu-Ni) [standard], Epoxy, Zinc (Zn), Gold (Au), Silver (Ag), Tin ... black, grey, silvery) , Ni-Cu-Ni plus Epoxy, Ni-Cu-Ni plus Rubber, Zn plus Rubber, ... for over 50 percent of all Neodymium magnets produced. Other applications include high performance motors ... wide range of novelty products such as fridge magnets and all kinds of magnetically attachable gadgets ...