bright
build
business
cap
cartridges
civil
color
construction
craftsman
danger
design
employee
engineers
equipment
hard
hardhat
hat
head
head wear
headgear
headwear
helmet
industrial
industry
job
life
male
manufactu
manufacture
mechanic
meters
object
plastic
professional
protect
protection
protective
safe
safety
simple
solid
still
technician
tool
wear
white
work