Close-up view of a worker using a specialized soil testing tool on a construction site.
Schlüsselwörter
men at work,
dirtied,
testing,
tool,
construction,
site,
closeup,
glove,
safety,
gear,
detail,
precision,
equipment,
dirt,
exam,
technology,
engineering,
professional,
task,
work,
ground,
analysis,
sample,
technique,
sharpened,
industry,
manual,
operation
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