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2025-08-15 22:59
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    1. Steel Known for its strength and affordability, steel is one of the most popular choices for roofing. It can be coated with zinc (galvanized) or a blend of zinc and aluminum (galvalume) for added corrosion resistance.


    2. Reduced Trip Hazards Protruding manhole covers can pose safety risks to pedestrians and cyclists. Recessed covers sit flush with the surrounding surface, minimizing the potential for tripping or falling, thus promoting safer passage in busy urban settings.