Beryllium copper is a supersaturated solid solution of copper-based alloy strip is colored alloy mechanical properties, physical properties, chemical properties and good corrosion resistance combined, after solution and aging treatment, with very high intensity limit and special steel , yield strength and fatigue limit, but also have a high electrical conductivity, thermal conductivity, high hardness and wear resistance, high creep and corrosion resistance. It is widely used in micro-motor brush, cell phones, batteries, computers on the plug-in, all kinds of switch contacts, springs, clips, gaskets, diaphragms, film and other products connections.