... market ,Japan, Korea&UAE market ect.1)Name: carbon steel flange &forged flanges2)Materials : ASTM A105,DIN ST37.2, ASTM A182 ... )Certificates: the TUV CERT ,ISO9001 - 2000, WO , PED.7)Standard: ANSI B16.5, B16.47, MSS, SP-44, AWWA, API, DIN, JIS, HG, GB ... Tong Pressure & Forging company LTD . engaged inforging of varieties of flange, axis , disk ,and unconventional parts, our forging flanges consist of ...