arc
argon
assembly
co2
connect
construction
craftsman
elded
fabricate
fabrication
factory
fire
fix
flash
gas
hand
heat
helmet
hot
industrial
industry
iron
job
join
labor
laborer
light
man
manufacture
manufacturing
mask
metal
protection
repair
safety
skill
smoke
spark
steel
structure
technical
technology
trained
wear
weld
welder
welding
work
worker
workplace