Why install round ductile iron manhole covers on the road?

I believe that everyone is familiar with round ductile iron manhole covers. They can be seen everywhere in our lives, ranging from roads and parks to small properties. We can see that no matter where they are installed, manhole covers are generally round.

I believe that everyone is familiar with round ductile iron manhole covers. They can be seen everywhere in our lives, ranging from roads and parks to small properties. We can see that no matter where they are installed, manhole covers are generally round. Do you know why round ductile iron manhole covers are used on the road? What are the advantages of round ductile iron manhole covers?

The application of round ductile iron manhole covers in road sewer openings is very special. The round ductile iron manhole covers have a strong, stable and durable structure. They can play a vital role in the daily maintenance of roads, sewers, optical fiber and other outlets. Moreover, its materials are low in price which adapt to market demand and have wide market applications.

In fact, the reason for using round ductile iron manhole covers is because round ductile iron manhole covers have good flexibility and are easy to make whether they are square or round. They are also very light and can save a lot of costs in transportation, installation and other aspects.

The reason why people like to use round ductile iron manhole covers is because round manhole covers are not easy to tilt and can better protect the safety of pedestrians and vehicles. If a square one is used, because the square's diagonal is significantly longer than each side, when such a manhole cover is rolled up, it is easy to fall into the well along the diagonal direction and cause a safety hazard.