1, computer hardware equipment; Network equipment (servers, routers, switches, modems, other network equipment); Monitoring equipment.

2, office automation and ancillary equipment; Office consumables and materials.

3, electrical equipment and ancillary equipment; Household appliances and equipment.

4. Air conditioning and refrigeration equipment.

5, radio, film and television equipment and materials; Photography and camera equipment; Printing and phototypesetting equipment; Radio equipment; Lighting equipment; Audio equipment.

6. Office furniture, wood products and metal products; Student desks and chairs, etc.

7. books; Teaching experimental equipment; Sports equipment and equipment; Music equipment and equipment.

8. Flower seedlings; The primitive species of plants; The primitive species of animals; Agricultural materials; Flood control and drought relief materials.

9, catering, cooking utensils.

10, boiler; Mechanical equipment; Elevator and lifting equipment.

1 1, surveying and mapping instruments and equipment.

12, medical and health equipment and instruments; Medicine.

13, cars, passenger cars (including vans, buses, vans, commercial vehicles), off-road vehicles, trucks, ships and other means of transportation.

14, engineering vehicles, fire engines, police cars, ambulances, communication broadcast vehicles, sprinklers, road sweepers, garbage trucks and other special vehicles.

15, other commodities.

For details, you can also refer to the catalogue of centralized government procurement published by the government procurement departments of various regions in that year.