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A low-angle photograph of a concrete pedestrian walkway with yellow metal rails, showing robust concrete engineering elements
Substructure detail under the Rogue River Bridge at Gold Beach in Oregon, USA
Fastening a bracket to the roof for a solar panel mounting system
Installation of solar panel support structures on a tiled roof
New house construction in progress on housing development site with underground part of the wall completed, service duct for future water supply installed, ready for beam and block installation

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