Standard: ANSI B16.47 Class:150, 300, 600, 900 Size: 26" - 60 ... Marine, Petrochemical, Energy, Nuclear, Automotive, Military, and so on..ANSI B16.47 FlangeClass:- 150, 300, 400, 600, 900Size:- 26" -60" ... GH3128, GH3030, GH2132, GH1140Our standard Flanges:- ANSI B16.5, B16.47- ASME B16.5, B16.47- JIS B2220- BS10, BS3293, BS4504- DIN 2502, ... -577-8588-8633Website: www.chinachaowei.com ANSI B16.47 Flange