Ductile iron manhole covers are the perfect choice for Roadway Projects that desire a sustainable and safety-assured product. Manhole covers cast from ductile iron can withstand more force compared to manhole covers cast from materials such as Concrete or Welded, Galvanized Steel.... as well as can withstand more environmental impact.

1. Below is a summary of the Strengths of Manhole Covers Cast from Ductile Iron

Manhole covers cast from ductile iron are a high-tech product of hydraulic technology. Manhole covers cast from ductile iron have many advantages such as:

- High durability and good heat resistance.
- Good load-bearing capacity and can withstand many impact forces.
- Can withstand many environmental impacts.
- Can withstand many impacts from chemical substances.
- Can withstand many impacts from temperature and pressure.
- Can withstand many impacts from liquid substances.
- Can withstand many impacts from stable substances.
- Can withstand many impacts from toxic substances.
- Can withstand many impacts from toxic substances and environmental protection substances.

Therefore, manhole covers cast from ductile iron are a high-tech product and have many superior advantages compared to other products.

2. Method of casting and maintenance of manhole covers cast from ductile iron

To ensure the sustainability of manhole covers cast from ductile iron, the following steps must be taken:

1. Choose to cast the manhole cover using ductile iron with suitable hardness.

2. Ensure that the manhole cover cast from ductile iron has suitable hardness and appropriate thickness.

3. Carefully check the structure of the manhole cover before casting.

4. Ensure that the manhole cover cast from ductile iron has high stability.

5. Carefully check the structure of the manhole cover after casting.

6. Perform monthly maintenance steps to ensure the sustainability of the manhole cover.

3. Ductile Iron Manhole Covers are easy to bend but do not crack or break

Ductile iron is produced from raw materials such as carbon, phosphorus, silicon, sulfur, magnesium,... with specific mixing ratios to create the structure of *Spheroidal Graphite* - *The most durable structural form among all types of cast iron.*

Therefore, when compared, ductile iron is always more durable than other materials.

In addition to good quality, another point that attracts users is that ductile iron has high ductility. Due to this, the **ductile iron manhole cover** does not crack or break. This further confirms the quality of this material.