acetylene
argon
black
burner
cassation
construction
cut
cutter
dump
equipment
eye
gas
glasses
goggle
goggles
industrial
industry
iron
junkyard
manpower
manually
melt
metal
metallurgy
old
oxyacetylene
oxygen
pile
propane
protect
protection
protective
recycle
recycling
safe
safety
scrap
site
smoke
smoky
spark
stack
steel
stock
torch
trash
waste
wear
work
worker