... slip on , blind , WN ,SW--Methodby forging ,forged flange --Pressure Ratingclass 150 300 600 900 1500 2500PN 6 PN10 ... threaded , and special mode --PaintingRust preventative oil painting or back /yellow/ varnish painting or galvaizing Item#FL25 Namesteel din forged flange Range½” ... 01-75 material stainless steel , carbon steel , nickel alloy ,cast iron ,brass , aluminum standardANSI : ANSI B16.5, ANSI ...