Standard: ANSI B16.5/B16.47 Material:ASTM A105 Size:1/4 NB TO 60NB Class: 150,300,400,600,900,1500,2500 MOQ:1PC Flange Type:Butt Welding Flange, Welded Neck Flange , Slip-on FlangeSocket Welding Flange, Lap Joint Flange, Flat/Plate Flange, Orifice Flange, Threaded FlangeLoose Plate Flange , Steel Pipe Flange , Spectacle Flange, Anchor Flange, SAE FlangeFace Finish:RF,FF,RTJ,TF,GFStandard and ...