arc
assembly
bar
construction
craftsman
equipment
fabricate
fabrication
factory
fire
flash
gas
glove
hand
heat
helmet
hot
industrial
industry
iron
job
labor
laborer
light
man
manufacture
manufacturing
mask
metal
outdoor
protection
reinforcement
repair
safety
site
skill
skilled
smoke
spark
steel
structure
technical
technology
trained
wear
weld
welder
welding
work
worker
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