1)Size:1/2"-48" 2)Connection:Butt Weld & Socket Weld & Thread 3) ... 600, CLASS 900, CLASS 1500, CLASS 2500European Series: PN 2.5, PN 6, PN 10, PN 16, PN 25, PN 40 ... City,Hebei Province,China Factory Certificate Test Equipment Production Equipment For sale PN 1.0 slip on carbon steel flange