... resistant 3.High temperature resistant raised face long weld neck flange Welding Neck Flanges, Slip on Flanges, Threaded Flanges ... Flanges, Lap Joint Flanges, Ring Joint Flanges, Long Welding Neck Flanges, Figure 8 Blanks Hubbed Slip on Flanges ... Flanges Loose Plate Flanges Loose Plate With Weld-neck Flanges , Blank Flanges Plate Slip-on Flanges, ... s special requirements raised face long weld neck flange