機器
alloy
blast
cast
electric
eye protection
factory
fire
flame
foundry
furnace
glowing
hardhat
heat
heavy
hot
industrial
industry
iron
ironworks
liquid
manufacturing
melt
metal
metallurgical
metallurgist
metallurgy
metalwork
mill
molten
people
pour
process
processing
production
protective
safety
sample
slab
smelter
smelting
spark
spoon
steel
steelworks
temperature
test
work
worker
workshop