Excuse me, who invented double-sided adhesive?

Meng Yang, a primary school student affiliated to Normal University, applied for a national patent.

1992, Yang Meng, who was only 12 years old at that time, found it inconvenient to hang charts with thumbtacks during the teacher's lecture, so after repeated thinking, he finally found a way to replace thumbtacks with two-sided tape.

The first name of double-sided tape is actually called "soft thumbtack".