Shanghai Shanggao Valve Group co.,ltd was founded in 1988,and now has been one of biggest valve group owning design, production and sales expertise teams. We manufacture according to various standards, including ANSI/API、JIS、DIN、BS、EN、GB standards. Main products includes ball Valves, butterfly Valves, plug Valves, check Valves, gate Valves, globe Valves, filters, draining Valves etc.also some special materials such as Monel, titanium alloy, zirconium, tantalum, Hastelloy, ultralow temperature steel etc. hanggao Valve Group own an integrated managing system, including CAD Valve Design Center, Quality Control & Detection Center, After-Sale Service and Technical Advisory Service. Every Shanggao employee strictly follows the 'PDCA' rule for the perfect quality to obtaining the credit and seizing the market. Own over 25 years expertise in supplying valves for the Chemical, Petrochemical and Water Processing Industries and so on, our brand "Shanggao" is one of the most famous bran