1) Stainless steel flange and carbon steel flange 2) Standard: ASME, ANSI, API, JIS, JPI, DIN, UNI, BS, ... Material: 316L, 316Ti, 304L, 321, 321H, Rst37.2, C22.8 4) OD: up to 2,500mm5) Production with anneal solution for stainless ... performance6) Special design availableOuter packing:Seaworthy plywood case 2500 stainless flange pressure rating