Standard: ANSI B16.5 Class:150, 300, 600, 900, 1500, 2500 Size ... , Energy, Nuclear, Automotive, Military, and so on..ANSI 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, ... , Longwan Central Industrial ParkWenzhou City, Zhejiang Prov, 32500, P.R.ChinaTel: +86-577-8588-8800 Fax: +86- ...