... neck , slip - on ,socket welding , blind. 2)ASTM A105,DIN ST37.2,ASTM A182-F304 F304L 3)ANSI ... A181, Q235, 20#, 20Mn3)Rating : ANSI 150LBS - 2500LBS DIN PN6 - PN160 JIS 5K - 30K HG PN0.25 - PN25 ... SP-44, AWWA, API, DIN, JIS, HG, GB, JG, BS.7)All the flanges are according to the ASTM, ... BS, DIN, JIS, EN, GB and customer's request. blind stainless flanges