... :HG20592 3,Series:RF.MFM.TG.FF.RJ BL(Blind) FlangeDefiniton:Flange with no holes in the centerSeries:RF BL Flange.MFM BL Flange ... .TG Flange.FF BLFlange. RJ BL FlangeCLASS:PN0.25MPa;PN0.6MPa;PN1 ... steel,Stainless Steel Alloy Steel, Forged SteelUsage:Sealed with pipeline BL(Blind) Flange