What are the contents of construction site warning signs?

The content of construction site warning signs that I recommend:

1. Safety first, prevention first.

2. Please wear a safety helmet when entering the construction site.

3. Please pay attention to safety when working at heights.

4. It is strictly prohibited to work while drunk.

5. No smoking to prevent fire.

6. Pay attention to the safe use of electricity to prevent electric shock accidents.

7. It is prohibited to cross the guardrail and pay attention to safety.

8. It is prohibited to wear slippers and sandals into the construction site.

9. Pay attention to construction safety and prevent accidental injuries.

10. Pay attention to protecting the environment and reducing construction noise and dust emissions.