General projects: Metal processing machinery manufacturing; Machine parts, parts processing; Special equipment manufacturing (excluding licensed professional equipment manufacturing); General equipment manufacturing (excluding special equipment manufacturing); Mechanical and electrical equipment manufacturing; Sales of metal products; Mechanical and electrical equipment sales; Machinery and equipment sales; Sales of mechanical parts and spare parts; Building materials sales; Hardware products retail; Hardware products wholesale; Mold sales; Mold manufacturing; Non-ferrous metal rolling processing; Non-ferrous metal alloy sales; Sales of new metal functional materials; Metal material manufacturing; Metal material sales; Nonferrous metal alloy manufacturing. (Except for projects subject to approval according to law, independently carry out business activities according to law with business licenses)