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Underground tunnel construction with silhouette of walking worker. The way to the light at the end of the tunnel.
Circle framing view of female engineer in safety gear & hardhat inspecting large metal swimming pool structure on construction site during the building process.
Diggers in round underground tunnel of heating duct with rusty tubes.
The silhouette of a construction engineer can be observed in a dark tunnel, with twilight illuminating the exit at the far end. This image captures the engineer diligently working within the space.
Professional underground workerpointing downward in a tunnel/mine.
A young African-American woman in a steel fabrication factory, working inside a large metal cylinder or tubular structure, doing quality control. She is wearing safety glasses and a hard hat.
Two men in special suits inject concrete with a machine.\n\nFrance - Paris- 08/17/2024
Industry Engineers Walking Inside Circular water Pipe. Engineering or Worker inspection pipe circular. Checking Construction of the water, Oil Natural Gas and fuels Transport Pipeline.
Female and male engineers work inside a large steel pipe. Workers build pipelines to transport oil, natural gas and fuels in industrial plants.
Coal mine underground corridor with support system
Tunnel worker examines pipeline in underground tunnel.
Busy female factory technician in hardhat focusing on work while examining tube at factory, view through object
Tunneller worker installing fixture in underground subway metro construction site
A silhouette of a male worker inside a tube or a treatment cylinder at an industrial site
Asian labor people and thai labour worker knitting metal rods bars into framework reinforcement for concrete pouring for working structure building at construction site night time in Bangkok, Thailand
Sofia, Bulgaria - April 19, 2016: Underground subway tunnel workers are going for lunch during their midday break.
Two male construction engineers, with flashlights and safety equipment, inspect the availability of large drainage pipe materials before commissioning the underground system.
On April 29, 2024, on a sunny day in Shuangliu District, Chengdu City, Sichuan Province, a group of workers were repairing a road under construction.
Worker in protective mask welding pipe in tunnel.
Two welders work in a pipe for an oil pipeline.
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The silhouette of a person in a high-speed railway tunnel under construction
Two mature multiracial workers in a steel fabrication factory inspecting a custom metal cylinder or tubular structure. The African-American man and his Hispanic supervisor are looking and pointing toward the same area, discussing an issue.
Huge railway tunnel under construction.
Blurly scene Senior engineer and site engineer work grinding in construction tunnel
A group of tourists seen in profile from a distance. This perfectly backlit photo was taken in a tunnel where the only source of light is the exit at the far end.
A team of young men working in a warehouse storing rolls of metal sheets. Inspecting the metal sheet rolls stored in the warehouse to be imported onto the metal sheet production line.
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