Manhole cover materials mainly include cast iron, composite materials, cement, and stainless steel, with prices ranging from tens to thousands of yuan, depending on factors such as material, size, and load-bearing capacity. For example, ordinary cast iron manhole covers may cost between tens and hundreds of yuan, while high-quality stainless steel manhole covers can cost thousands of yuan.
Cast iron manhole covers are the most traditional type, known for their high strength and good load-bearing capacity. They can withstand significant pressure and weight, making them commonly used in urban roads, highways, and other applications requiring heavy loads. However, cast iron manhole covers also have some drawbacks, such as being prone to rust, heavy, and difficult to open. To overcome these shortcomings, new manhole cover materials have been developed.
