Tianjin Sien Machinery Equipment Co., Ltd. is an integrated enterprise dedicated to machinery designing, manufacturing, repairing and installation since 1997. Covering an area of 12,000m2, thereinto the plant area over 7,600m2, we are located in Dagang Economic Development Zone of Tianjin, where is included in Bohai economic cycle, enjoying great geographical and traffic convenience by neighboring the seaport, airport, railway and highway network. Sien Machinery always persists in scientific management, we achieved QMS ISO9001:2015, EMS ISO14001:2015 and OHSMS ISO45001:2018 certificates, besides, we obtained the Manufacture License of Special Equipment PRC (Pressure Piping Components) in Feb. 2008, and CCS Certificate of Work Approval, ECM Material Manufacturer Certificate, Russia GOST-R Certificate and NORSOK M-650 successively, covering multiple products. We also have independent right of import and export. Our company mainly manufactures series of pressure piping products for offshore platforms, such as cylinder skid equipment, high & medium pressure strainers, chemical injection equipment, high-pressure flanges and fasteners, which are widely used in petroleum, chemistry, light industry, electric power, heating, marine, oil & gas transmission, etc. fields. Since establishment, Sien Machinery has honed skills and accumulated experience for 20 years. The Sien Brand enjoys increasing popularity, more and more equipment and components stamped with “TSN” spread over chemistry, petroleum and ships. With good quality and competitive price, we became a preferred supplier of CNOOC, CNPC, BOMESC, COOEC-Fluor, Lanzhou Petrochemical Company, CPP, Wison and QMW etc. renowned enterprises, and signed Strategic Supply Agreement with them. At present, with strong technical strength, advanced equipment, complete testing measures and good after-sale service, our production capacity and testing techniques stand leading position in the same domestic industry. We have exquisite production technologies and advanced facilities for fabrication, weld, forge & press, machining and heat treatment etc., as well as accurate inspection & test instruments for chemical analysis, metallographic analysis, NDT and mechanical property testing. Sien people pursue the enterprise culture of “Progressive, Practical, Preciseness and Solidarity” and keep on exploration and innovation. Persisting on the technique as core concept, we adhere to seek perfect quality, best service and enterprise innovation. We welcome friends from China and abroad to create a splendid future together. We believe we can do things others cannot do and we do better.