General projects of Shandong Yihecheng Steel Co., Ltd.: steel rolling processing; Non ferrous metal rolling processing; Metal material manufacturing; Metal structure manufacturing; Sales of metal materials; Metal cutting and processing services; Processing of Machine element and spare parts; Sales of metal products; Metal structure sales; Sales of non-ferrous metal alloys; Sales of high-quality special steel materials; Sales of high-performance non-ferrous metals and alloy materials; Retail of hardware products; Sales of mechanical equipment; Sales of Machine element and spare parts; Sales of building materials; Sales of forgings and powder metallurgy products; Sales of metal chains and other metal products; Sales of mechanical and electrical equipment; Import and export of goods; Technology import and export. (Except for projects that require approval in accordance with the law, independently carry out business activities with the business license in accordance with the law)