arc
assembly
build
close
connect
construction
craftsman
engineering
fabricate
factory
fire
flash
hazardous
industrial
industry
job
join
labor
light
line
man
manufacture
manufacturing
mask
metal
metalwork
occupation
production
protection
protective
repair
safety
shield
shipyard
skill
smoke
spark
sparkle
specialist
steel
structure
technical
technology
welder
welding
work
worker
workforce
workplace
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