Ductile Iron Manhole Cover Round Cover is a type of manhole cover that is made of ductile iron. This type of cover is generally used for covering manholes in roads, sidewalks, and other public areas. The round cover is designed to fit over the circular opening of a manhole, providing a secure and durable cover that can withstand heavy traffic and other environmental factors. Ductile iron is a type of iron that has been treated with magnesium to make it more ductile and flexible. This makes it an ideal material for manhole covers, as it can withstand heavy loads without cracking or breaking. In addition, ductile iron is resistant to corrosion, making it a long-lasting and cost-effective choice for manhole covers. The round shape of the cover is designed to fit snugly over the circular opening of a manhole, providing a secure and stable cover that can withstand heavy traffic and other environmental factors. The cover is typically held in place by a series of bolts or other fasteners, e…