The new generation of gradient hardness forged steel balls developed by Jinan Zhangqiu Huayi Heavy Industry Co., Ltd. have achieved a 40% increase in product lifespan through the "multi-stage forging + zone quenching" process, and their wear resistance exceeds the EU standards by 12%. After testing, the surface hardness is 60-64 HRC, the impact toughness is ≥ 15 J/cm², and the industrial test single consumption is 0.52 kg/t of raw ore, which is 32% lower than that of imported products. Currently, the annual production capacity is 30,000 tons, and it supplies leading mining enterprises at home and abroad. In the third quarter of 2025, the high-end sales volume will increase by 58%, helping the Zhangqiu forging industrial cluster's output value exceed 8 billion yuan.