arc
assembly
build
connect
construction
craftsman
entrepreneur
erecting
fabricate
factory
fire
fix
flash
gloves
improvisation
industrial
industry
iron
job
join
labor
laborer
light
making
man
manufacture
manufacturing
mask
metal
pile
pipe
production
protection
protective
repair
safety
skill
skilled
smoke
spark
steel
structure
technical
trained
welded
welder
welding
work
worker
workplace