1) Blind flange/WN flange etc. 2) Size: 1/2 - 24" 3) Pressure class: 150 - 2, 500lbs 4) Material: Stainless steel, Carbon steel, Alloy steel 5) We can supply flanges according to customers' needs 6) ANSI B16. 5/DIN/JIS/UNI/BS/GB 7) Big size flange: ASME B16.47