Shanghai Autotight Valve & Fitting Co., ltd We provide: 1. Valve: ball valve, gate valve, globe valve, check valve, butterfly valve, knife gate valve, foot valve, sanitary valve, brass valve, steam trap, strainer, etc. 2. Pipe fitting: thread fitting, welded fitting, high pressure fitting, sanitary fitting, quick joint, flange, pipe etc. More details please browse our web site . We have got the certificate of ISO9001-2000, CE and API6D. Please feel free to contact me if you need any more information.