architect
architecture
background
blue
building
business
color
concept
construction
contractor
design
employment
energy
engineer
engineering
equipment
factory
hard
hardhat
hat
head
headgear
health
healthy
helmet
industrial
industry
inspection
interior
job
maintenance
orange
plan
plant
plastic
prevention
protect
protection
protective
safe
safety
security
structure
tool
white
work
worker
workman
yellow
定額
White, yellow and other colored safety helmets for workers' safety projects in the position of engineers or workers on concrete walls in the city.の素材 [FY310139028335]
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