Characteristics of ductile iron manhole covers
Back Ductile iron manhole cover is a type of ductile iron product. Ductile iron obtains spherical graphite through nodularization and inoculation treatment, which effectively improves the mechanical properties of the cast iron, especially the plasticity and toughness, thereby obtaining higher strength than carbon steel. Ductile iron is a high-strength cast iron material developed in the […]
What is the EN-124 standard for manhole covers?
The EN-124 standard for manhole covers is a set of European norms established by the European Committee for Standardization (CEN).
What should be paid attention to when customizing cast iron manhole covers in terms of dimensions
Back When customizing cast iron manhole covers, it is very important to accurately grasp the dimensions. So, when customizing, what issues should we pay attention to in terms of size? This is a question that we will introduce to you today. Let’s take a look at this question. The direction of the flat steel […]
Why use a double manhole cover
Back The fiberglass sub cover, also known as the fiberglass inner cover, is placed inside the ductile iron well cover, composite well cover, and steel fiber well cover to prevent personnel from falling if the outer well cover is damaged or lost. Depending on the situation, there are several functions: 1. Preventing personnel from falling […]