Copper-based master alloys are produced for the copper and brass industry.  E FORU provides Copper-Rare Earth Alloys, including Copper-Yttrium, Copper-Lanthanum, Copper-Cerium, Copper-Praseodymium, and Copper-Neodymium.    We also provide other Copper Master Alloys, such as Copper-Titanium, Copper-Manganese, Copper-Zirconium, and Copper-Cadmium.      The range includes alloys such as Copper-iron, Copper-manganese, Copper-boron and Copper-zirconium.    They dissolve better than the corresponding pure metal or metals.