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Engineers adjusting security surveillance system with CCTV technician
Worker installing scaffolding on building, showcasing the teamwork and safety equipment required for scaffold setup on construction site, focusing on safety harnesses and work platforms.
Construction worker using pneumatic nail gun to install new bitumen shingles on roof
Roofers completely replace old asphalt shingle roof during summer in Canada
Mounters building photovoltaic solar module station on roof of house. Men electricians in helmets installing solar panel system outdoors. Concept of alternative and renewable energy. Aerial view.

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