Shandong Iraeta Heavy Industry Stock Co., Ltd is a Chinese grinding ball manufacturer located in Zhangqiu, Shandong, China. It is a joint venture between Gestamp Group and Forjas Iraeta of Spain. The company produces 200,000 metric tons of grinding balls annually using supermatic production lines and unique heat treatment techniques. It sources raw materials from major steel producers and has rigorous quality control, gaining certifications such as ISO 9001. The grinding ball division aims to provide stable, high-quality balls for mining customers worldwide.