Shanghai Sanzhou Automation Dash Co., Ltd is a professional manufacturer and exporter of control valves in China. We supply varies of control valves, including electric type, pneumatic type, diaphragm operated type, high performance type, self-operated type, which are applied in power station, steel plant, chemical plant, gas station, water treatment station, paper pulp, petro-chemical, pipeline and so on. Our valves are produced according to standard ANSI, API, JIS, DIN, and GB, and till now we are certified with ISO9001, CE, API6D, etc. We pay high attention to the quality control and new products R&D. If you are interested in our products, you can log in our website for more information.