arc
arch
bib
blue
construction
day
engineering
equipment
fabrication
factory
fire
flame
flash
gas
gloves
heat
helmet
industrial
industry
insustry
iron
job
labor
light
man
manual
manufacture
manufacturing
mask
metal
metalwork
occupation
production
protection
repairing
safety
skill
smoke
spark
steel
technology
tool
torch
welder
welding
welding mask
work
worker
working
workshop