FORGED flange 1.standard:ANSI /API / AWWA / DIN / BS / JIS 2.150LB 300LB 600LB 900LB ... Q235, 20#, 20Mn ,16Mn, CH2.8, C22.83)Rating : ANSI 150LBS - 2500LBS DIN PN6 - PN160 JIS 5K - 30K HG PN0 ... - 2000, WO , PED.7)Standard: ANSI B16.5, B16.47, MSS, SP-44, AWWA, API, DIN, JIS, HG, GB, JG, BS ... consist of 30 specifications derived from 7 standards, i.e. ANSI ,API ,MSS ,AWWA , DIN ,JIS ,BS as well as GB ...