... Neck Flanges Standards: ANSI,BS,DIN (1) Flanges Type: Plate Flange, Flat Flange, Slip on Flange, Welding Neck Flange, Long ... , F12, F22, F91 (4) Connection Type: Raised Face, Flat Face, Ring Type Joint, Lap-Joint Face, Large Male-Female, Small Male-Female, Large ...