... steel flange Technical data: 1) Standard: DIN 2512, 2519, 2526, 2527, 2566, 2573, 2576, 2631, 2632, 2633, 2634, 2635, 2641, 2642, 2655 ... , 2656, 2673, etc. 2) Material: Alloy steel, Carbon steel or Stainless steel 3) Type: Welding ... available About us: carbon steel flange for high pressure pipeline DIN standard and drop forged