We are offering steel slip on flanges plate flange : 12" to 240" nb forged flange : 12" to 80" nb standard : ansi b 16.5, awwa, bs 10, bs 3293, is 6392, din, en 1092, bs 4504, jis, iss & as per customer drawingspecification material : carbon steel, stainless steel, low temeprature carbon steel, alloy steel, duplex steel, nickel alloy.