Standard: ANSI B16.5 Class:150, 300, 600, 900, 1500, 2500 Size: 1/2" - 24" Type: WN, SO, SW, TH ... on..ANSI B16.5 FlangeClass:- 150, 300, 400, 600, 900, 1500, 2500Size:- 1/2" -24"Types: - Welding Neck (WN), Slip ... , GH3128, GH3030, GH2132, GH1140Our standard Flanges:- ANSI B16.5, B16.47- ASME B16.5, B16.47- JIS B2220- BS10, BS3293, BS4504- DIN ... 577-8588-8633Website: www.chinachaowei.com ANSI B16.5 Flange