Our company engages in the import and export of business goods; Sales of rubber products; Manufacturing of hardware products; Wholesale of hardware products; Retail of hardware products; Research and development of hardware products; Sales of plastic products; Sales of metal products; Sales of metal tools; Sales of mechanical parts and components; Processing of mechanical parts and components; Sales of mechanical and electrical equipment; Sales of office supplies; Sales of chemical products (excluding licensed chemical products); Sales of labor protection supplies; Sales of office equipment; Sales of building materials; Sales of architectural decoration materials; Leasing of mechanical equipment; Research and development of mechanical equipment; Repair of general equipment; Import and export agency; Technical import and export (except for projects requiring approval according to law, business activities are independently conducted in accordance with the law with a business license)