action
bright
cast
casting
construction
equipment
factory
fire
flame
founder
foundry
fumes
furnace
glow
hard
heat
heavy
helmet
hot
industrial
industry
iron
liquid
man
manufacturing
melting
metal
metallurgy
mill
molten
occupation
pickup truck
plant
pour
pouring
power
production
red
smelter
smelting
smoke
spark
steel
steel mill
technology
trolley
work
worker
workman
workplace safety