... WN PL TH SW Standard: ASME, ANSI, API, JIS, JPI, DIN, UNI, BS, AS Material: A105,Q235, WCB, CF8, 314.316 ... Welding Flange, Threaded Flange, Lap Joint Flange, Blind Flange and other kinds of special flanges.Standard:America:ASME B16.5,ASME B16 ... -1989(2005),GB/T10746-1989,GB/T4450-1989Germany:DIN 2573~2576,DIN 2527,DIN 2630~2637,DIN 2641~2642Japan:JIS B2220-2004,JIS F7806-1996 ...