Manhole cover is a seal product on the top of the entrance to the underground facilities. All place where install water, telecommunications, electricity, gas, heat, fire protection, sanitation and other public facilities need to install manhole cover.

According to the characteristics of pipeline engineering, in order to meet the requirements of installation equipment, daily overhaul and maintenance, inspection wells are set along the buried direction of pipeline at a certain distance in the project.

According to the shape, manhole covers shape mainly is round, square or rectangular, Among these standard manhole covers, another one is specially designed for customers. The manhole cover with inner circle and outer square is also popular with customers.

The inner circle and outer square manhole cover can be designed according to the size and requirements of customers. Simple ones with decorative frame . It can also be customized according to customers’ preferences, such as flowers, birds, phoenix, words and letters. The manhole cover pattern can also be designed into cross pattern, T-shaped pattern, etc. This new design can fully meet customer preferences and geographical requirements.