1)Size:1/2"-48" 2)Connection:Butt Weld & Socket Weld & Thread 3)Standard:ASME, ... are easy to use in fabricated applications.Size1/2"-48" DN15--DN3000MaterialCarbon steel, stainless steel and ... , 12CrMoV, Q235, 16Mn, 20# etc.)ConnectionButt Weld & Socket Weld & ThreadPressure American Series: CLASS 150, CLASS 300, CLASS ... CLASS 900, CLASS 1500, CLASS 2500European Series: PN 2.5, PN 6, PN 10, PN 16, PN ...