1. High strength

Ductile iron manhole cover is up-graded cast iron manhole cover. It add ductile in cast iron to make the manhole strength much higher than iron manhole cover, not easy to broke by hammer.

2. Anti-theft

With less recycled materials compared with cast iron manhole cover, make ductile iron manhole cover more safer. And the cover is linked with the frame by hinge, not easy to be taken away.

3. Nice appearance

We use high quanlity ductile into our product, make it appearance more smooth than cast iron manhole cover and not easy to get rust. Its color is much closer to driveway, and not easy to sink, make our road more and more beautiful.

4. Anti-shock

A special device is in the manhole cover, so that the cover and frame can be connected much closer. It asmost avoid the noise when car pass by, and no more shocks come accross.

5. Competitive price

With all above advantage, the price is almost similar with cast iron manhole cover. So ductile iron manhole cover is become more and more popular in the morden life, and is highly valued by govenment.