alloy
argon
construction
craftsman
electric
electricity
fabrication
fabricator
flash
gas
heat
hot
industrial
industry
iron
job
labor
laborer
laboring
light
maintenance
manufacture
manufacturing
mask
men
metal
mig
occupation
plasma
power
production
protection
repair
safety
skill
smoke
spark
spray
steel
technology
trained
weld
welder
welding
work
worker
workforce