architecture
area
bright
build
builder
business
cap
concrete
construction
contractor
damage
danger
employee
employment
engineering
equipment
factory
falling
hard
hardhat
hat
head
header
headgear
healthy
helm
helmet
industry
inspection
job
maintenance
manufacture
miner
object
orange
placed
plastic
prepared
prevention
professionals
project
protection
safety
site
solid
wear
work
worker
workman
yellow
定額
The contractor provided a many helmet for the workers to wear before entering the construction area and provided helmets against the falling objects.の素材 [FY310137528377]
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