architecture
blue
builder
business
career
civil
construction
contractor
contruction
craftsman
danger
engineer
engineering
equipment
estate
first
foundation
hard
hat
helmet
improvement
industrial
industry
infrastructure
job
labor
laborer
lifting
management
occupation
plant
project
property
protection
protective
safety
security
site
structural
structure
table
teamwork
technician
tool
urban
white
work
worker
workplace
yellow
定額
The white, blue and yellow safety helmet stacking on table with the blueprint and measuring tools at construction site for Engineer, foreman and worker. Safety first concept.の素材 [FY31084643335]
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