arc
blue
business
construction
energy
engineering
equipment
factory
fire
flash
gas
gloves
heavy
hot
industrial
industry
iron
job
labor
laborer
light
man
manufacture
manufacturing
mask
metal
metalwork
pipeline
piping
power
production
protection
protective
repair
safety
skill
smoke
spark
stainless
steel
technical
technology
tool
weld
welder
welding
work
worker
workplace
workshop