... market ,Japan, Korea&UAE market ect.1)Name: carbon steel flange &forged flanges2)Materials : ASTM A105,DIN ST37.2, ASTM ... 20#, 20Mn ,16Mn, CH2.8, C22.83)Rating : ANSI 150LBS - 2500LBS DIN PN6 - PN160 JIS 5K - 30K ... TUV CERT ,ISO9001 - 2000, WO , PED.7)Standard: ANSI B16.5, B16.47, MSS, SP-44, AWWA, API, DIN, JIS, ... of 30 specifications derived from 7 standards, i.e. ANSI ,API ,MSS ,AWWA , DIN ,JIS ,BS as ...