1) Stainless steel flange and carbon steel flange 2) Standard: ASME, ANSI, API, JIS, JPI 1) Stainless steel flange and carbon steel flange2) Standard: ASME, ANSI, API, JIS, JPI, DIN, UNI, BS ... ) OD: up to 2,500mm5) Production with anneal solution for stainless performance6) Special design availableOuter packing:Seaworthy plywood case ansi stainless steel welding neck flange