... ,DIN,GB 2.Material:Cr25Ni35,HK40,steel 3.ISO9001:2008 Weld Neck Slip on Lap Joint Flange Varieties: threaded flange, slip ... smooth,can work under presure for long time,advanced testing equipment to ensure thye quality,7.Packing:wooden case,wooden pallet ... , medicine and other industries. 13.Payment:L/C,T/T Weld Neck Slip on Lap Joint Flange