... 2500) 4. Flange Facing: Raised face, flat face, ring type joint, lap-joint face, male- female, tongue & groove 5. Flange Materialls ... Socket Welding Flanges, Blind Flanges, Orifice Flanges, Lap Joint Flanges, Ring Joint Flanges, Long Welding Neck Flanges, Figure 8 BlanksPRESSURE GRADE ... 48"Carbon Steel Flange Type: Slip-On, Welding Neck, Blind, Socket Welding, Lap Joint,Threaded and Plate etc.Pressure ...