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A worker the new road construction work on preparation for installation of sewer hatches
A cast iron sewer hatch is being installed in a concrete well, in preparation for the installation
Installing cast iron sewer hatch on a concrete base of installation of water main sewer well in the
A worker installs a sewer manhole on a septic tank made of concrete rings
Sewerage construction with utility worker installing underground well manhole sewage
Street paving installation of laying sewer manholes of improvement of urban areas
