Manhole covers are devices used to cover culverts, commonly made of materials like steel or cast iron, featuring corrosion and wear resistance properties.
Manhole covers are primarily used for channels in roads, squares, construction sites, etc., serving to beautify the environment.

Manhole covers should be regularly inspected and maintained to ensure proper usage and prevent potential safety hazards.

Manhole covers can also be used in municipal construction and urban maintenance, to maintain the city's infrastructure.

When using manhole covers, be mindful of their load capacity and do not exceed their carrying capacity to avoid any accidental incidents.
When purchasing manhole covers, pay attention to their quality and choose products from authorized manufacturers to ensure safety.