arc
argon
concept
construction
craftsman
danger
engineering
equipment
factory
fire
flash
framework
gas
gloves
helmet
hot
industrial
industry
iron
job
light
maintenance
make
man
manufacture
manufacturing
mask
metal
metallic
production
protection
protective
repair
rolled
safety
shield
smoke
spark
steel
technical
technology
tool
weld
welder
welding
work
worker