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A worker attaches essential fire safety signs to a wall at a construction site, ensuring safety compliance during daylight hours.
wind turbine with solar panels and sunset. concept clean energy. Energy supply, wind turbine,eolic turbine, distribution of energy,Powerplant,energy transmission,high voltage supply concept
Roofer worker in special protective work wear and gloves,Using pneumatic gun and repair and replace roof tile on top of the new roof.
Repairman fix air conditioning systems, Male technicians service for repair and maintenance of air conditioners, Air conditioning technicians install new air conditioners in homes
Closeup of plumber using screwdriver while installing new steel hot water central heating system in apartment

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