... the advanced forge technology .SpecificationsFeatures:1) Stainless steel flange and carbon steel flange 2) Standard: ASME, ANSI, API, JIS, JPI, DIN, UNI ... , BS, AS 3) MatFeatures:1) Stainless steel flange and carbon steel flange2) Standard: ASME, ANSI, API, JIS, JPI ... for stainless performance6) Special design availableOuter packing:Seaworthy plywood case flange