... B16.9, DIN, JIS, GOST17375, EN10253-1, EN10253-25. Certification: ISO9001:20086. Third party inspection: BV, SGS, ... blind flange, socket weld flange, threaded flange, lap joint flange, plate flange, reducing flange, spectacle blind flange ... /2''-24'' Flat Face, Raised Face, Ring Joint Face, Lap Joint Face, Male Face, Female Face, Tongue & ... B16.9/ASME B16.28/ASME B16.25/ASME B16.49 A234 WPB/A420 WPL3/ ...