1)Size:1/2"-48" 2)Connection:Butt Weld & Socket Weld & Thread 3)Standard:ASME,ANSI,BS,DIN,JIS,etc. 4)ISO 9001:2008 ... 1500, CLASS 2500European Series: PN 2.5, PN 6, PN 10, PN 16, PN 25, PN 40, PN 63, PN 100, PN 160, PN 250, PN 320, PN 400Flange Face TypesRaised Face(RF ... Province,China Factory Certificate Test Equipment Production Equipment For sale PN 1.0 slip on carbon steel flange