assembly
automated
automatic
bead
blue
build
connect
construction
container
craftsman
equipment
erecting
fabricate
factory
fire
fix
flash
gas
horizontal
industrial
industry
labor
laborer
laser
light
man
manual
manufacture
manufacturing
mask
metal
metalwork
plant
production
protection
repair
safety
skill
skilled
smoke
spark
steel
technical
technology
weld
welded
welder
welding
worker
workplace