... Flanges,JIS Flanges,ISO Flanges, BS Flanges,EN Flanges and ect.Material(Carbon Steel):ASTM A105,20#,Q235,16Mn ... A182 F304,304L, F316,316L,1Cr18Ni9Ti,0Cr18Ni9Ti,321,18-8(Alloy Steel): ASTM A182 F1, F5a, F9, ... ,16MnR,Cr5Mo,12Cr1MoV,15CrMo,12Cr2Mo1,A335P22,St45.8/3StandardDIN,ANSI/ASME/ASTM,JIS,ISO,BS,ENSize11 ... is to provide all of our clients with value of the products instead of only low prices!You ...