... 2500European Series: PN 2.5, PN 6, PN 10, PN 16, PN 25, PN 40, PN 63, PN 100, PN 160 ... gaskets,Tongue-and-Groove (T&G),Male-and-Female (M&F)StandardASME,ANSI,BS,DIN,JIS,etc.Surface Treatment Transparent oil ... Province,China Factory Certificate Test Equipment Production Equipment asme b 16.47 carbon steel forged flange