arc
building
built
construction
danger
engineering
fabrication
factory
fire
flash
heat
hot
industrial
industry
iron
job
labor
laborer
light
man
manufacturing
mask
men
metal
metalwork
occupation
production
protection
protective
repair
safety
skill
smoke
spark
sparks
steel
structure
technical
technology
tool
weld
welder
welders
welding
work
worker
working
workplace
workshop
workwear