1.Item:stainless steel flange 2.Size:1/2"-100",SCH5-160 3 ... 310S,310,309,309S,316,316L,316Ti,317,317L,321,321H,347,347H,304,304L,302,301,201,202, ... , Flat Flange, Slip on Flange, Welding Neck Flange, Long Welding Neck Flange, Blind Flange, Socket Welding Flange, Thread Flange, Screwed Flange, ... information:3.Photoes:4.Package:5.Certificates:6.Cooperation: stainless steel Welding Neck Flanges