architecture
background
blue
build
builder
business
cap
clothes
construction
cut
cutout
danger
engineer
gloves
hands
hard
hardhat
hat
head
headgear
headwear
helmet
industrial
industry
isolated
job
life
male
manufacture
manufacturing
no
nobody
object
oil
path
plastic
protect
protection
protective
safe
safety
security
simple
solid
still
tool
wear
work
worker