DFN.DFN was established on June 13, 2008, with its registered location in Donggang Economic Development Zone, Dandong City. Occupying an area of 200,000 square meters, it is a large-scale manufacturer of ring forgings. The company specializes in the R&D, design, production, and high-tech services of industry-leading ring-shaped and cylindrical metal products, serving critical sectors aligned with national strategic priorities and infrastructure development in energy, petrochemicals, machinery, rail transit, medical equipment, aviation, and aerospace. Key products include: wind turbine tower flanges, large precision bearing rings, large gear rings, petrochemical forgings, intelligent tunnel construction equipment, and high-temperature alloy ring forgings for gas turbines.
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