SO flange Online Inquiry Details C.S: S235JR, P250GH, P280GH, P355QH A.S: 16Mo3, 13CrMo4-5 Standard: EN1092-1 Pressure: PN 2.5 - PN100 Size: DN10 - DN4000 Face type: BL, FF, RF, RTJ, WN Previous Product:TH flange Next Product:WN flange Related Products ORIF flange PL flange SW flange BL flange