Electric Switch spring 1. Widely Used in switch. 2. Advanced produced technology. 3.Tight joint. Electric Switch spring Features: 1.Material:imported or domestic high-peformance conducting material2.Surface treatment:silver plating,powder coating,nickel plating,chromeplating,zinc plating etc.3.style of coil:elliptic4.style of spring:OEM & ODM accpeted5.Quality:ISO90001&ISO14001quality system ...