... F317L,F347H,F310S,F310H,F321,F321HSuperaustenitic stainless steel:S31254Duplex stainless steel:S31500,S31803(2205),S32304,S32205,S32760,S32750 ... Alloy:B10,B30Special steel:N06600,N08800,N08811,Titanium alloy, Alloy steel etc.Carbon manganese steel:20# / Q235B / A105,16Mn, ... Technics:Hot die forging from round bar,CNC machining,Drilling and Passivating high quality Stainless steel flange, 150~1500class