stainless steel flange,duplex,weld neck flange.. 1.ss 201,301,304,316,etc. 2. ... design 3.ISO,SGS stainless steel flange,duplex,weld neck flange.. Type:Slip On Flange, Welding Neck Flange, Socket Welding Flange, Threaded ... (2205),S32304,S32205,S32760,S32750,HDRCopper Nickel Alloy:B10,B30Special steel:N06600,N08800,N08811,Titanium alloy, Alloy steel etc.Carbon manganese steel:20 ...