A manhole cover is a device used to cover roads or deep wells in a home to prevent people or objects from falling.
A manhole cover is a device used to cover roads or deep wells in a home to prevent people or objects from falling. Well covers can be classified according to different standards:
Classified by material
Metal manhole covers: including cast iron, ductile iron, bronze, etc.
High strength steel fiber cement concrete manhole cover (cement-based composite material).
Polymer based composite material inspection manhole covers, etc.
Classified by carrying capacity
Steel fiber reinforced concrete manhole covers are divided into four levels based on their bearing capacity: a, b, c, and d, which are suitable for different roads and sites.
Classify by shape
Well covers are generally divided into circular and square shapes. Circular manhole covers are commonly used in urban road administration because they are not easy to tilt and can effectively protect pedestrians and vehicles. Square manhole covers are often used in rural areas and cable wells to effectively prevent the entry of liquids such as rainwater.
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