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Ventilation hose inserted into utility vault to extract fumes and ensure confined space safety for workers.
confined space entry by permit only.A clear warning sign informs about confined space rules at a construction site, emphasizing that entry is allowed only with a proper permit. Safety is a priority.
Civil crew exposes vertical watermain standpipes during excavation with excavator support as part of hydrant or valve chamber reconstruction.
Male worker inspection of rusted steel pipe, underground steel deterioration, widespread corrosion, and confined spaces in marine oil pipelines.
A brown wooden sign with yellow lettering that reads "Danger Confined Space Do Not Enter."

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