... -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 ... Flanges STANDARD: ISO 7005-1PRESSURE GRADE:PN2.5,PN6,PN10,PN16,PN25,PN40,PN50,PN110,PN150, PN260,PN420welcome to contact us Forged Steel ...