... ANSI B16.5, BS4504, DIN2633, EN1092-1 ISO TUV Certificate Forged Steel Flange:Welding Neck Flanges, Slip-on Flanges, Blind , Plate ... Flanges, Socket Weld Flanges,Threaded Flanges, Lap Joint Flanges, Orifice Flanges, Figure 8 Blanks Flange, Anchoring Flange 1 ... ,PN6,PN10,PN16,PN25,PN40,PN50,PN110,PN150, PN260,PN420 Forged Carbon Steel Flange