General project: Research and development of mechanical equipment; Maintenance of electronic and mechanical equipment (excluding special equipment); Sales of metal forming machine tools; Special equipment manufacturing (excluding licensed professional equipment manufacturing); Sales of mechanical equipment; Sales of CNC machine tools; CNC machine tool manufacturing; Sales of machine tool functional components and accessories; Manufacturing of machine tool functional components and accessories; Manufacturing of metal forming machine tools; Metal processing machinery manufacturing; Hardware product manufacturing; Research and development of hardware products; Mold sales; Sales of electronic products; Sale of second-hand goods; General equipment repair; Special equipment repair. (Except for projects that require approval in accordance with the law, business activities shall be carried out independently with the business license in accordance with the law)