... if we get your drawings & technical requirements!standard forged flangesstandard pressure rate ANSIANSI B16.5class150,300,600,900, ... 1PN6,PN10,PN16,PN25,PN40,PN63PN10010"-2000"Non-standard forged flange is manufactured as per the drawings!Now I’ ... the privilege of serving you soon.MaterialForged Carbon Steel, Stainless Steel , Duplex Stainless Steel , Low Alloy Steel(Like A105,LF2,LF6,F6a,F304, ...