Packaging and decoration printing; Printing of documents, materials, and other printed materials; Printing and binding services. (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.) General projects: sales of paper products; Paper product manufacturing; Manufacturing of plastic products; Sales of plastic products; Manufacturing of asbestos products; Sales of asbestos products; Ink sales (excluding hazardous chemicals); Sales of ecological and environmental materials; Sales of daily necessities; Sales of daily glass products; Wholesale of arts and crafts and collectibles (excluding ivory and its products); Sales of electronic specialized materials; Sales of metal materials; Sales of photocopying and offset printing equipment; Wholesale of hardware products; Sales of electronic products; Sales of household appliances; Sales of needle textiles; Sales of labor protection equipment; Conference and exhibition services. (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)