Ningbo Longchain E&I Company is one of professional metal stamping supplier in China.We owns two stamping factories which has complete line of equipments and machines for metal products.



We are specialized in various OEM metal stamped-welded products with various surface treatments for 12 years. The complete set of stamping and welding equipment gives us larger production capability. ISO quality control system ensure our quality keeping superior. As a professional stamping manufacturer, we are dedicated to achieving superior quality through teamwork and continuous improvement....