... .Certificate:ISO9001:2008 1. ANSI Stainless Steel F304L Forged Flange 2. Material:Stainless Steel:such as 201, 301 ,304,304L, ... 316,316L,321 and so on. 3. Standard: JIS,BS,DIN.ANSI/ASTM ,NF, ... 10 16 25 40 64 and 160,5K-40K and so on . 7. Sealing surface : FF ,RF, LJ, FM ,R. ... T.J ,R.J ,MALE ,FEMALE and so on . 8. Used for : petroleum,chemical,power,gas,water,linepipe ...