construction
craftsman
duty
engineering
equipment
fabricate
fabrication
factory
fire
flame
flaming
flash
gas
health
heavy
hot
industrial
industry
iron
ironworks
job
laboring
man
manual
manufacture
manufacturing
mask
metal
metalwork
occupation
production
protect
protection
protective
safety
skill
skilled
spark
steel
technical
technology
tool
torch
weld
welded
welder
welding
worker
working
workplace
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