... 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, DIN, UNI, BS, ...