A manhole cover is a removable plate that is used to cover the opening of a manhole, which is a hole in the ground that provides access to underground utility lines, such as sewer, water, or electrical systems. Manhole covers are typically made of cast iron or other durable materials to withstand heavy loads and prevent unauthorized access to the underground infrastructure. They are usually round in shape to prevent them from falling into the hole and are designed to be easily lifted and replaced by maintenance workers when necessary. Manhole covers are an essential component of urban infrastructure, ensuring the safety and functionality of underground utility systems.
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