The reason for the hot sale is that the production technology of Hainan ductile iron manhole covers has been greatly improved, and the market prospect of their sales is much larger than that of other products. Therefore, the ductile iron manhole covers have been sold very well. So what is the reason why they are loved by so many people? Let's get to know about it.

1、 Anti theft: This product uses polymer chemical composite materials. It is molded at high temperature and has no secondary use value, so it has the characteristics of natural anti-theft.

2、 Corrosion resistance and aging resistance: the commodity has been inspected by the national chemical building materials testing base, and has remarkable ability of acid and alkali resistance and corrosion resistance. The aging resistance goal has reached above Grade III, and the service life is long.

3、 Safety of nodular cast iron manhole cover: the product uses a steel support, which will not crush even under destructive loads, and has the function of preventing degeneration. The performance targets such as bearing capacity have been inspected by the national construction project quality supervision and inspection base, and all meet the CJ/T121-2000 standard of the Ministry of Construction.

4、 The quantity of convenient and beautiful standard goods is only one third of that of cast iron manhole covers, which brings great convenience to the installation and protection. We also produce goods of various standards and colors according to customer requirements, even in management, and beautify the city.

5、 High precision: because the product is molded by high temperature molding, the gap between the cover and the seat is small, which overcomes the problems of cast iron and cement manhole covers such as "running, jumping, and ringing", and improves the ability to travel on the road and driving comfort.

6、 The reuse value is not high: the new type nodular cast iron anti-theft manhole cover is composed of several materials. It contains impurities, and is recycled for processing. The reuse value is not high. This is the fundamental way to prevent thieves from stealing.

7、 Beautiful appearance: on the premise of ensuring the flatness, the manhole cover is integrated into the road surface and the road to beautify the city. However, the old gray cast iron manhole cover, because of its dark color and rough appearance, it is necessary for the concrete well ring to reveal that the color of the asphalt surface is inconsistent with the asphalt surface, and the flatness is difficult to control and the road is difficult to integrate, which is a difficulty in beautifying the city.

Hainan nodular cast iron manhole covers are popular, which also affirms their excellent manufacturing and advantages in use, Although there are still shortcomings, we will work harder to seek the best product quality for everyone, so that everyone can use and buy with ease.