... Materials:stainless steel or carbon steel 3.Standard:JIS,EN,DIN,ANSI,ASME 4.Type: slip on , blind , WN ... 20k--Type:plate , slip on , weld neck , blind , threaded , and special mode--PaintingRust preventative oil ... flange Range½” (15 NB) to 64” (1200NB) in 150 LBS, 300 LBS, 600 LBS, 900 LBS, ... . Available with NACE MR 01-75 material stainless steel , carbon steel , nickel alloy ,cast iron ,brass , aluminum ...