1. Ladders shall be placed on firm ground. Do not place it on ice, snow or slippery ground without anti-skid and fixed equipment.

2. Do not use ladders when you are tired, drink alcohol or have physical problems

3. Do not stand on the ladder step within 1 meter from the top of the ladder during operation, and always keep the safety protection height of 1 meter, and do not climb the support point at the top

4. It is forbidden to exceed the indicated bearing mass during operation

5. Do not use ladder in strong wind

6. The metal ladder is conductive and avoid being close to the charged place

7. When climbing, face the ladder, grasp with both hands, and keep the center of gravity in the center of two ladder pillars

8. Do not work with your hands over your head to avoid losing balance and danger

9. It is forbidden to cross directly from one side of the ladder to the other