assembly
auto
automobile
bead
blue
construction
container
craftsman
engineering
equipment
fabricate
fabrication
factory
flash
gas
horizontal
hot
industrial
industry
labor
laborer
light
man
manual
manufacture
manufacturing
mask
metal
metalwork
occupation
part
production
protection
repair
safety
skill
spark
steel
technical
technician
technology
tool
torch
weld
welded
welder
welding
worker
working