... Standard: ASME, ANSI, API, JIS, JPI, DIN, UNI, BS, AS Material: A105,Q235, 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.Standard:America: ... from round bar,CNC machining,Drilling and Passivating high quality Stainless steel flange, 150~1500class