... type SO WN PL TH SW Standard: ASME, ANSI, API, JIS, JPI, DIN, UNI, BS, AS Material: A105,Q235, WCB, CF8 ... , Lap Joint Flange, Blind Flange and other kinds of special flanges.Standard:America:ASME B16.5,ASME B16.48,ASME B16 ... ~2576,DIN 2527,DIN 2630~2637,DIN 2641~2642Japan:JIS B2220-2004,JIS F7806-1996,JIS B2291-1994Shipbuilding:CB1001-81,CBM1013-81,CBM1018-81 ...