1. The characteristic trading area of college students' second-hand network includes "moderator recommendation" and "merchant preferential information". "Moderator's recommendation" moderators mainly recommend cheap second-hand goods for college students to buy, and "merchant preferential information" will update the preferential activities and discount activities information of various merchants in the university town from time to time.

2. In the computer area, there is a "used computers" section, including second-hand desktop computers, second-hand notebook computers, second-hand hard disk memory, second-hand motherboard graphics cards, second-hand chassis power supplies, second-hand speaker mouse buttons, second-hand monitors and other used computers products.

3. In the mobile phone digital area, there is a "second-hand mobile phone digital" section, including second-hand smart phones, second-hand music phones, second-hand camera phones, second-hand domestic mobile phones, second-hand mobile phone accessories, second-hand digital cameras, second-hand DV, players, MP3, MP4, video games, PSP, ADSL and other second-hand mobile phone digital information.

4. In the daily necessities section, there is a second-hand daily necessities section, including second-hand induction cookers, second-hand rice cookers, second-hand electric fans, second-hand electric kettles, second-hand electric heating rods, second-hand clothes, second-hand sporting goods, rackets, balls and other second-hand daily necessities.

5. In the bicycle area, there is a "second-hand bicycle" section, which includes information about second-hand bicycles such as second-hand mountain bikes, second-hand ladies' bicycles, second-hand folding bicycles, second-hand variable-speed bicycles, second-hand electric bicycles, second-hand racing cars, second-hand electric vehicles and second-hand bicycle accessories.

6. In the book section, there is a "second-hand book" section, including second-hand books, second-hand postgraduate entrance examination books, second-hand civil servant books, second-hand law books, second-hand computer books, second-hand English CET-4 and CET-6 books, second-hand compulsory books, second-hand elective books, second-hand magazines, second-hand extracurricular tutoring books, second-hand newspaper materials and other second-hand book information.

7. In the graduation department store area, there is a "graduation clearance sale" section, which includes all the second-hand students' daily necessities for graduation clearance sale.