assembly
blue
connect
construction
craftsman
equipment
fabricate
fabrication
factory
fire
flash
gas
hot
industrial
industry
iron
job
join
labor
laborer
light
man
manual
manufacture
manufacturing
mask
metal
metalwork
occupation
person
production
protection
repair
safety
skill
skilled
spark
steel
structure
technical
technology
tool
torch
trained
weld
welder
welding
work
worker
workplace