... account customers pressure and application requirement .Flanges are custom built to suit the clients specification the best ... , F6, F9, F7, F11, F12, F21, F22 Stainless Steel : 304,304H,304L,310,310 S,321,321H, 316Ti, ... 316H,316L, 347,347H, Duplex Steel , UNS S 31803, 2205 , Super Duplex Steel , UNS S 32750Nickel Alloys : Monel ... 57688.936.576143.764144.526128.27-- stainless steel forge 904l flange