300x500x40mm ductile iron drainage manhole cover

The 300x500x40mm Ductile Iron Drainage Manhole Cover for Municipal Infrastructure is a robust, load-bearing component engineered to support urban drainage systems, sewer access points, and utility openings. Produced by Anhui Xinwanfangyuan Machinery Technology Co Ltd from high-strength ductile iron, this cover combines durability, functionality, and compatibility with standard municipal infrastructure specifications.   Constructed from ductile iron—a material valued for its tensile strength and impact resistance—this 40mm-thick cover can withstand heavy loads from pedestrian traffic, light vehicles, and maintenance equipment, making it ideal for installation in sidewalks, roadside drainage ditches, and residential area sewer access points. Its dimensions (300mm width, 500mm length) align with pre-cast drainage ditch openings, ensuring straightforward integration into existing or new urban infrastructure projects.   The cover’s slotted design (visible in the product image) enables effic…

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