acetylene
background
blue
bright
burner
collar
construction
cut
dangerous
equipment
expertise
factory
fire
flame
foundry
gas
glasses
glow
hazardous
hot
industrial
industry
iron
job
liquid
machinist
man
manufacture
manufacturing
metal
metallurgy
metalwork
molten
occupation
oxygen
pipe
production
profession
propane
red
repair
rust
spark
steel
tools
torch
weld
welder
welding
work