... Size:DN25-1000mm 2.Pressure: PN1.0-16.0MPa 3.Material:WCB,WC6,CF8,CF8M,CF3,CF3M API6D ISO9001 ... 1.Size:DN25-1000mm2.Pressure: PN1.0-16.0MPa 3.Material:WCB,WC6,CF8,CF8M,CF3,CF3M LCB,LC3 ... for pipeline: JB/t52983.Pipe flange and flange fitting: ANSI B16.5a4.Integral casting steel pipe flange: JB/T79.1~79.25 ... valves only,able to lightly open and close valves.3.The seat ring uses the sealing face inlaid witn ...