... 3) Nice Packing 4) Delivery on Time Stainless Steel Flanges Type:Slip On Flange, Welding Neck Flange, Socket ... Flange, Blind Flange and other kinds of special flanges.Standard:America:ASME B16.5,ASME B16.48 ... ,F347H,F310S,F310H,F321,F321HSuperaustenitic stainless steel:S31254Duplex stainless steel:S31500,S31803(2205),S32304,S32205,S32760, ... forging from round bar,CNC machining,Drilling and Passivating