SHANGHAI RITAI VALVE MANUFACTURE CO.,LTD. it's a modernized enterprise integrating valve production, scientific research & development, sale and service. Its products,Vacuum valve,Low-temperature valve,Flat valve,Emergency shut-off valve, Pressure Reducig valve,Elastic-seat enclosed valve,Water Power control valve,Ball valve in natural gas pipeline,and some special kinds of valves made of fine titanium,nickel xxxxx term of ANSI Standard are widely used in Steel & Iron,Petroleum,Chemical Industry , Environmental Protection etc. For so many years, it has gained highly evaluation and entrustment from all the customers.