The high-grade low-sulfur and low-phosphorus forged steel balls from Haoyang Casting and Forging of Jinan have been certified by France's ASN and have been installed in the Flamanville Nuclear Power Plant. The sulfur and phosphorus content is ≤ 0.005%, and the fatigue life is 100,000 impact cycles without cracks. The innovative vacuum degassing process has achieved a flaw detection pass rate of 99.8%, breaking the French technological monopoly. It has obtained the EU CE certification and is expected to export 3,000 tons per year. Plans to add 2 more nuclear power production lines.