The general business project is: Sales of metal cutting and welding equipment; Sales of intelligent basic manufacturing equipment; Sales of electronic components and electromechanical component equipment; Sales of solar thermal utilization equipment; Sales of solar thermal utilization products; Sales of industrial robots; Sales of additive manufacturing equipment; Battery sales; Research and development of mechanical equipment; Sales of electronic products; Sales of mechanical equipment; Sales of metal products; Domestic trade agency. (Except for projects that require approval in accordance with the law, business activities shall be carried out independently based on the business license in accordance with the law), the licensed business projects are: Technology import and export; Import and export of goods; Import and export agency. (For projects that require approval according to law, business activities can only be carried out with the approval of relevant departments. The specific business projects shall be subject to the approval documents or permits of relevant departments. )