Xi'an YunYi Instrument Co,.ltd is located in Xi'an city of china, with the development of more than 15 years, it has become a professional leading manufacturer of back pressure regulator, pressure reducing valve,needle valve, ball valve, valve manifold and other pressure products such as pressure transmitter,pressure gauge, pressure calibrator in China, Our products have been exported to more than 10 countries, such as The United States, Canada, South Africa, Mexcio,Iran,Turkey, India,etc.
Xi'an YunYi Instrument Co,.ltd have strong design team and manufacture base, to help customer achieve their business objectives through innovative & latest technology with international standards. Our clients' expectation and satisfaction is our destination.