assembly
auto
blue
connect
construction
craft
engineering
equipment
fabrication
factory
flash
gas
horizontal
hot
industrial
industry
job
labor
light
man
manual
manufacture
manufacturing
mask
metal
metalwork
occupation
part
pipe
production
protection
protective
repair
safety
skill
spark
steel
technical
technology
tool
torch
weld
welder
welding
work
worker
workshop
workwear