assembly
black
build
connect
construction
craftsman
engineering
equipment
fabricate
factory
fire
fix
flame
heat
helmet
holding
industrial
industry
job
join
labor
laborer
light
manual
manufacture
manufacturing
mask
metal
metalwork
prefabricate
production
protect
protection
protective
repair
safe
safety
spark
steel
technical
technology
tool
weld
welded
welder
welding
work
worker
workwear