Firstly, i would like to make a brief introduction of our company. Zhejiang ISRI Shuangdi Spring Co., Ltd. is a JV company set up by Zhejiang Shuangdi Spring Co., Ltd. (Set up in 1981) and ISRING HaoSen Co., Ltd. from Germany in 2005 speciaizing in production of springs and pressed parts. Our products covers auto springs, its application including Suspension system, Brake system, transmission system,Steering system, Dock system, lighting system etc., It has designated matching parts supplier of many large scaled Auotmotive enterprises at home and abroad.We got the quality system authentication of ISO/TS16949: 2002, ISO 9001, ISO14001, OHSAS18001.