Wenzhou Wenna Auto Parts Co., Ltd. locates in the capital of China Auto parts city, Tangxia, Ruian, Which was established in 2008. As a professional manufacturer, we specialized in research, development, and exportation of EGR valves. Now we have owned more than 300 models of EGR valves, VVT valves till the end of 2016. Our factory have strong production capacity and new products development ability with the most advanced produce and test equipments. Our testing lab including resistance tests, leakage tests, response and flow rates tests, etc. Our products have been recognized by domestic quality authorities and foreign customers.