... high quality Nickel Alloy flanges, used in various industry like Chemical, Aerospace, Marine, Petrochemical, Energy, Nuclear, Automotive, Military, and so on..ANSI B16.5 ... S22253, S22053, S21953- High temperature alloy GH600, GH3128, GH3030, GH2132, GH1140Our standard Flanges:- ANSI B16.5, B16.47- ASME B16.5, B16.47- JIS B2220- BS10 ... : +86-577-8588-8633Website: www.chinachaowei.com ANSI B16.5 Flange