1.Size:1/2-80" 2.Certificate: ISO,EC,CCS,LR,ABS,DNV,BV,etc. 3.Material:carbon steel,SS,alloy steel 4.MOQ:10PCS Carbon Steel Blind Flange TypFlangeSize1/2" - 80"(DN15 - DN2000)Wall thicknessSch5-Sch160XXSStandardANSI,ASME GB, SH,HG, MSS,JIS,DIN, APIMaterial1) Carbon Steel: ASTM A234WPB, WPC; ASTM A420 WPL9,WPL3,WPL6A;ST 37.2.2)Stainless Steel: ASTM A403 WP304/304L, WP316/316L,WP321,WP3473)Alloy ...