Detailed Product Description Specifications: 1) Size: 1/2 - 24" 2) Pressure class: 150 - 2,500lbs 3) Type: Slip On flange, Welding Neck flange, Blind flange, Threaded(screw) flange, Plate flange, Socket Welding flange, Lap Joint flange etc. 4) Facing: RF/FF5) Material:Carbon steel 6) Standards: ANSI B16.5/B16.47/DIN/UNI/JIS/GB