http://www.zhonghe-valves.com/ and Valves in China" Wenzhou Oubei Dongou Industrial Park, with convenient transportation and fast transportation; it is a valve manufacturer integrating product development, design, manufacturing, sales and service. The enterprise has passed the ISO9001-2008 international quality system certification, and obtained the special equipment manufacturing license TS certification enterprise; it has large and medium-sized high-precision machining equipment and perfect quality inspection and testing equipment, and ha