Certificate:DNV,ISO9001,API,AZ,CE Material:WCB,216-WCB Supplier of CNPC,SINOPEC ... -1500Suitable temperature-196-550°CDesign reference GB,API,ASME Face to face Flange connection/Welded connection Ball valve ModelQ47FCertificateDNV ISO9001:2000, CE ... ,API,LRQA,TSSuitable medium General type :Water,Oil ...