explosion
caution
cloth
clothes
clothing
coal
concept
construction
coveralls
danger
dirt
dirty
employee
engineer
engineering
equipment
fabric
factory
gear
hard
hardhat
helmet
industrial
industry
job
laborer
male
man
methane
mine
miner
mineral
outfit
personal
power
profession
professional
protect
protective
repairman
safety
technical
textile
tool
underground
uniform
wear
work
worker
workman