... ,316L,321 3.standard:HG20592, ASME16.5B, DIN weld neck reducing flangesize3/8''~160''TypeLap-Joint Flange (LJ), Socket ... -welded Flange (SW), Slip-on Flange (SO), Welding-Neck Flange (WN), Threaded Flange (TH), etc.American SeriesCLASS 150, ... blind flanges, reducing flanges, weld neck flanges, socket weld flanges, lap joint flanges, spectacles flanges, ring joint flanges, orifice flanges, long ...