Material:PTFE Certificate:CE,API,ISO9001 Trunnion ball valve is the class-1 supplier for CNPC,CAO,CNOOC,Sinopec - Type:Welded ... Class 150-1500Suitable temperature-196-550°CDesign reference GB,API,ASME Face to face Flange connection/Welded connection Ball ... r ModelQ67FCertificateDNV ISO9001:2000, CE ,API,LRQA,TSSuitable medium General type :Water,Oil and natural ...