... the privilege of serving you soon.MaterialForged Carbon Steel, Stainless Steel , Duplex Stainless Steel , Low Alloy Steel(Like A105,LF2,LF6,F6a,F304,F316 ... Ratio4:1Main marketAfrica, North America, South America, Southeast Asia, Mid East, Eastern Asia, Eastern EuropeReportsMaterial test (as per EN10204 3.1 ... drawings you require.Welcome to your enquiry! non-standard carbon steel pipe flange