arc
construction
craftsman
electric
electricity
fabrication
factory
fire
flash
gas
hand
heat
helmet
hot
industrial
industry
iron
job
labor
laborer
light
maintenance
man
manufacture
manufacturing
mask
men
metal
plasma
power
production
protection
repair
safety
skill
smoke
spark
spray
steel
structure
technical
technology
trained
wear
weld
welder
welding
work
worker
workplace