Although the road manhole cover is a municipal engineering subsidiary structure, it has an important impact on road engineering and drainage engineering. It directly affects the safety of people's lives and property and more often brings threats to driving vehicles. With the development of society and the advancement of science and technology, there will be more and more new technologies and new materials, and the construction technology of inspection wells will be continuously improved and the performance will continue to improve. Read More

It is necessary to replace and maintain the manhole cover, which is related to the safety of personnel and the normal operation of facilities. It is closely related to our lives.The most economically valuable manhole cover is composite manhole covers. Composite manhole covers will eventually replace cast iron manhole covers. Read More