... WCB, CF8, 314.316 Type:Slip On Flange, Welding Neck Flange, Socket Welding Flange, Threaded Flange, Lap Joint Flange, Blind Flange and other kinds of special flanges ... stainless steel:S31500,S31803(2205),S32304,S32205,S32760,S32750,HDRCopper Nickel Alloy:B10,B30Special steel:N06600,N08800,N08811,Titanium alloy, ... CNC machining,Drilling and Passivating high quality Stainless steel flange, 150~1500class