FORGED flange 1.standard:ANSI /API / AWWA / DIN / BS / JIS 2.150LB ... flange &forged flanges2)Materials : ASTM A105,DIN ST37.2, ASTM A182- F304 F304L, F316,F316L,F321 ,ASTM A350 ,ASTM A181, Q235, 20#, 20Mn ... Certificates: the TUV CERT ,ISO9001 - 2000, WO , PED.7)Standard: ANSI B16.5, B16.47, MSS, SP-44, AWWA, API ... JG, BS.8)All the flanges are according to the ASTM, BS, DIN, JIS, EN, GB and customer's ...