Manhole Cover
A manhole cover is a removable plate forming the lid to cover the opening of a manhole, to prevent anyone or anything from falling in, and to keep out unauthorized persons and material or whatever be the intended reason.
Manhole covers are being made and used since the era of ancient Rome, which had sewer grates made from stone.
Used in all over the world and easy to spot. Generally made of metal, but could be concrete die-casted or cement.
Manhole covers are being made and used since the era of ancient Rome, which had sewer grates made from stone.
Used in all over the world and easy to spot. Generally made of metal, but could be concrete die-casted or cement.
