... We Zhejiang Chaowei New Material Co.,Ltd are profesional manufacturer of high quality Nickel Alloy flanges, used in various industry ... Aerospace, Marine, Petrochemical, Energy, Nuclear, Automotive, Military, and so on..ASME B16.5 FlangeClass:- 150, 300, 400, 600, 900, 1500, 2500Size ... GH3030, GH2132, GH1140Our standard Flanges:- ANSI B16.5, B16.47- ASME B16.5, B16.47- JIS B2220- BS10, BS3293, BS4504- ...