... stainless steel,carbon steel ,alloy steel flange and dual phase steel Standard: JIS,ANSI,UNI,DIN,NF,ASME,API,JPI,AWW Features: 1) Stainless steel flange and carbon steel flange ... 2) Standard: ASME, ANSI, API, JIS, JPI, DIN, UNI, BS, ... 000mm 5) Production with anneal solution for stainless performance 6) Special design available