DVT Spring is a manufacturer who established in 2006, located in Ningbo city. Our plant cover more than 1,000 square meters and 50 employees around. We are specialize in spring and stamping parts, such as compression spring, torsion spring, wire forming parts, battery contact etc,North America, Europe, Southeast Aisa are our main markets. We have exported our spring to over 20 countries until now.DVT spring factory is making Good quality good price earphone holder springs.