... , ASME16.5B, DIN weld neck reducing flangesize3/8''~160''TypeLap-Joint Flange (LJ), Socket-welded Flange (SW), Slip-on Flange (SO ... flanges, weld neck flanges, socket weld flanges, lap joint flanges, spectacles flanges, ring joint flanges, orifice flanges, long weld neck flanges etc.