1. Open the mobile phone WeChat chat interface and select mine.
2. Click the small arrow next to the avatar, select more information and enter.
3. In More Information, select Personalized Signature. After entering the personalized signature, enter the content of the personalized signature in the horizontal line.
4. After filling in the personalized signature, select Save Home Page.
Article 1:
I have done more than one year's work of sorting out and submitting data of door and window engineering and thermal insul