arc
argon
background
blue
bottle
construction
container
cylinder
danger
energy
engineering
equipment
factory
flame
gas
gauge
heat
hot
industrial
industry
iron
job
manual
manufacture
manufacturing
metal
metalwork
mig
occupation
pipe
power
pressure
production
protection
safety
stainless
steel
tank
technology
tool
torch
valve
weld
welder
welding
work
worker