We are a factory that specializes in manufacturing high-quality Welding Neck Flanges in accordance with GOST 12821 standards. Our product range includes sizes from 1" to 8" and DN25 to DN200. These flanges are made from premium-grade materials, ensuring durability and longevity. We utilize advanced manufacturing techniques to produce flawless products that can withstand intense pressure, temperature, and corrosive conditions. Our flanges offer excellent resistance to deformation, cracking, and leakage. Choose us for high-performance flanges that can yield outstanding results in terms of safety, efficiency, and reliability.