Ductile iron pipes are divided into six anti-corrosion layers, which are the following anti-corrosion layers:

Nowadays, in the life and work of the city, a large amount of water supply and gas supply are needed to ensure people's normal daily life. Therefore, ductile iron pipes have become the best choice for natural gas and water supply companies

In industrial production, nodular cast pipe is a commonly used pipe material, and due to the technological characteristics of nodular cast iron pipe, it has obvious advantages in the market

Six ways to identify inferior ductile iron pipes
1. Ductile iron pipes are prone to folding. Folding is a variety of fold lines formed on the surface of ductile iron pipes, and this defect often runs through the longitudinal direction of the entire product.

Heavy-duty ductile iron manhole cover is a common industrial equipment, and its performance advantages are also very significant compared with other material manhole covers.