Weihai jinggang Heavy Industry Machinery Co. Ltd. is located at No. 40 Shugang Road, Economic Development Zone, Rushan City, Weihai City, Shandong Province. Situated 91 km from the airport and 72 km from the port, the company enjoys convenient transportation and stands as one of the major steel casting plants in the Jiaodong region. Established in 1998 as a private enterprise (formerly known as Yantai Sanhe Steel Casting Co., Ltd.), the company employs over 50 people and occupies a site of 20,000 square meters, featuring more than 4,000 square meters of standardized factory buildings and warehouses. It has an annual production capacity of over 3,000 tons of steel, iron, and ductile iron castings, with annual sales exceeding 20 million RMB. Its products serve various sectors, including mining, power generation, shipbuilding, steel manufacturing, and automotive tooling. Production primarily adheres to Chinese (GB), American (ASME), and Japanese (JIS) standards. Materials include various grades of low-carbon steel, low-to-medium alloy steel, stainless steel, and specialty steel—such as ZG250–450, 65Mn, 1Cr13, 304, 316, A216-WCB, A217-WC6/WC9...