Stainless steel blind flange 1,Standard:ASME,ANSI,JIS,GB,DIN etc 2,Size:1/2"-200" 3,Type:PL,SO, ... WN,SW,BL 4,ISO Certificate Stainless steel blind flange Material : Stainless steel:304,316 ... ,2520,2205,13Cr,9Ni,etcStandard : ASME,ANSI,JPI,JIS,GB,ISO,DIN,BS ETC.Size : 1/2" - 200"(DN15-DN5000)Thickness : SCH10 ...