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Galvanization involves coating iron or steel with zinc to prevent rusting. While this treatment extends the life of pipes, it also alters their surface texture. The roughness created by the galvanization process can increase the friction factor compared to smooth-walled pipes. This increase implies greater energy requirements for pumping fluids through galvanized pipes, particularly in systems that rely on water or other low-viscosity fluids.
friction factor of galvanized iron pipe factories

Moreover, these covers often feature a textured surface to provide traction and prevent slipping, particularly in wet conditions. This is crucial for pedestrian safety, especially in urban areas where foot traffic is heavy. They are also designed to be stackable and lightweight for easier transportation and installation, even in densely populated or high-traffic areas.
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