Export manhole cover

The manhole cover is the closure on the top of the entrance and exit to the underground facilities. It is necessary to install the manhole cover wherever public facilities such as tap water, telecommunications, electricity, gas, heat, fire protection, and sanitation are installed. With the rapid development of our economy, our infrastructure construction has ushered in a new cycle, and the market demand for manhole covers in urban planning and road construction is huge. However, manhole covers are crushed and damaged from time to time, resulting in a decrease in the safety of roads and facilities. This article starts with various manhole cover standards and analyzes the rationality of the standard setting.