... Size: 1/2-78 inch, DN15-2000 Standard: ANSI, JIS, DIN, UNI, BS flat flangesOur flat flanges include carbon steel and stainless steel ... flat flanges.1), Sizes: 1/2 inch-78 inch, DN15 ... , S235, C22.8. SS: F304, F304L, F316, F316L, 316Ti3), Standard: ANSI, JIS, DIN, BS4504, SABS1123, EN1092-1, UNI, AS21294), Types: WN ...