You can see various manhole covers everywhere on the street, such as sewage treatment manhole covers, sewer manhole covers, municipal manhole covers, communication manhole covers, and electric manhole covers. The natural materials of these manhole covers for different functions are different. Installed on the road or on the side of the road, so the installation must comply with the specifications and procedures, otherwise it will easily cause safety hazards and cause inconvenience to the public.

1. Check that the diameter of the clear hole of the wellbore shall not be larger than the clear hole of the well frame, so as to avoid accidents caused by the hanging of the well frame.

2. The relative height between the product plane and the surrounding ground should be in the range of +2～-2mm. Exceeding this range will be detrimental to the future use of the manhole cover.

3. During the installation and use of the product, always keep the manhole cover facing up.

4. The side strips of the manhole cover can be pressed with stone or poured with concrete to keep the manhole cover fixed and not displaced.

5. During on-site construction, our company can provide personnel and technical guidance for installation.