Weld Neck Slip on Lap Joint Flange 1.Standard:ANSI ASME,DIN,GB 2.Material ... :Cr25Ni35,HK40,steel 3.ISO9001:2008 Weld Neck Slip on Lap Joint Flange Varieties: threaded flange, slip-on flange (SO), socket ... welding flange, lap joint flange (LJF), welding neck flange (WNF), blind flange, orifice ... 13.Payment:L/C,T/T Weld Neck Slip on Lap Joint Flange