Galvanized edge covers are primarily used in factories and residential communities due to the frequent crushing of concrete manhole covers and road damage. Therefore, manhole covers made of steel grating are chosen for their ability to withstand various load capacities. These covers are simple to install, lightweight, have excellent load-bearing capacity, are shock-resistant, bend rather than break, offer high drainage, and are aesthetically pleasing and durable after hot-dip galvanizing, providing corrosion resistance that surpasses cast iron covers. The requirements for actual usage scenariosHigh load-bearing, shock-resistant, bend rather than break