... :stainless steel flange 2.Size:1/2"-100",SCH5-160 3.Grade:310S,309S,316,316L321,304,317,317L,201,904L,Duplex ... ,410,420,430,904L,Duplex,etcTypePlate Flange, Flat Flange, Slip on Flange, Welding Neck Flange, Long Welding Neck Flange, Blind Flange, Socket Welding Flange, Thread Flange, Screwed Flange, Lap Joint ... :4.Package:5.Certificates:6.Cooperation: stainless steel socket welding flange