1. Ads with fine printing and bright paper are self-adhesive. The advantage of self-adhesive is that it is easy to use and sticks smoothly. Many fast-moving consumer goods print promotional stickers all year round and stick them at the door of the factory.

2. Some posters are made of 157g coated paper, and the back is pasted with double-sided tape. The printing cost of this kind of advertising poster is cheap, but the disadvantage is that the flatness of the pasting is slightly poor. It is inconvenient to paste in some circumstances.

When the advertisement is due to be replaced, no matter what kind of advertisement it is, it needs to be wiped with alcohol, gasoline, and acetone to remove it.