Ductile iron manhole covers are widely used

Botou tianlong casting ductile iron manhole covers are widely used, like general electric water district municipal road highway schools and parks for its application is more popular, the product development speed is limited the application of grey cast iron, ordinary cast iron material, can be in steel. Products can be divided into two kinds, one is round, square circular path downtown is a commonly used, because circular manhole covers is not easy cleaning can be a good maintenance, vehicle and pedestrian safety. It can be round, mainly considering that the round well cover has the same length, so the lid is rolled up. Anyway, he will not fall into the mouth, if it is a square, square diagonally it is important to note that because the length more than the other, the function of the nodular cast iron manhole cover the performance of the son of the cover of a solid sample is easy to get along with diagonal direction drilling, form the safe hidden trouble.

Therefore, when using this product, we should choose the practical value. Of course, botou tianlong casting does not use the round hole cover directly to save the material of the well cover more effectively, and also ensure the safety of the well cover.