arc
background
bright
closeup
construction
craftsman
electric
electrode
engineering
equipment
factory
fire
flame
flash
gas
gloves
hot
industrial
industry
iron
job
labor
laborer
light
man
manufacture
manufacturing
mask
metal
metalwork
mig
occupation
power
production
protection
repair
safety
skill
smoke
spark
sparks
steel
technology
tool
torch
weld
welder
welding
work
worker