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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

In crowded urban environments, optimizing space is crucial. Folding parking bollards allow property owners to maximize their usable area. When access is not needed, the bollards can be easily folded down, providing more space for pedestrians or additional parking. This functionality is especially beneficial during events or busy periods when more room is required. The ability to quickly adjust the configuration of space helps improve traffic management and overall accessibility.
parking bollards folding

The primary purpose of lifting a manhole cover is to provide access to underground utilities
. Utility workers and maintenance personnel perform this task to conduct inspections, repairs, or upgrades to the systems below. Regular maintenance is essential; for instance, in the case of sewer lines, routine checks can prevent blockages that lead to system failures and unsanitary conditions.