Today, steel steel flanges play an important role in various industries, including oil and gas, petrochemicals, installations, water and wastewater, food industries and many more. The use of steel steel flange has been considered due to its high strength, durability and ease of installation in plumbing networks and fluid transmission systems. In this article, we will discuss the manufacture and production of steel steel flange, the processes used and the benefits of these products, and we will also refer to Iran's steel flange complex in Isfahan as a reputable manufacturer of these products.