In addition to their safety function, manhole covers also protect internal facilities like pipelines and cables, preventing external damage.
Manhole covers should be regularly inspected and maintained to ensure proper usage and prevent potential safety hazards.

There are many types of manhole covers. The specific choice should be based on actual needs, such as load capacity, size, and material.

When using manhole covers, be mindful of their load-bearing capacity and do not exceed their carrying capacity to avoid unexpected accidents.

The installation of the manhole covers should be secure, with no movement or wobble to ensure safety.
When using manhole covers, it is important to adhere to relevant regulations, such as not violating traffic rules and not parking on the covers.