... )ASTM A105,DIN ST37.2,ASTM A182-F304 F304L 3)ANSI B16.5,BA105,DIN ST37.2, ASTM A182- F304 F304L, F316,F316L,F321 ,ASTM A350 ,ASTM ... A181, Q235, 20#, 20Mn3)Rating : ANSI 150LBS - 2500LBS DIN PN6 - PN160 JIS 5K - 30K HG ... , JG, BS.7)All the flanges are according to the ASTM, BS, DIN, JIS, EN, GB and customer's request. Stainless flanges ...