General items: Manufacturing of office equipment consumables; Manufacturing of plastic packing boxes and containers; Sales of packaging materials and products; Packaging services; Sales of graphite and carbon products; Sales of generators and generator sets; Wholesale of hardware products; Sales of office supplies; Paper products sales; Wholesale of stationery; Sales of additive manufacturing equipment; Wholesale of computer software, hardware and auxiliary equipment; Ink sales (excluding hazardous chemicals); Sales of office equipment consumables; Sales of plastic products; Manufacturing of plastic products; Sales of chemical products (excluding licensed chemical products); Wholesale of electronic components; Sales of electronic components and electromechanical components; Sales of special equipment for pulping and papermaking; Metal structure sales; Mold sales; Office equipment sales; Sales of integrated circuit chips and products; Tea set sales; Sales of agricultural and sideline products; Rubber products manufacturing; Sales of rubber products; Sales agent; Technology import and export; Import and export of goods; Import and export agent. (Except for projects that need to be approved according to law, business activities shall be carried out independently according to law with the business license)