機器
area
cast
casthouse
casting
crane
dust
equipment
factory
ferrous
fire
flame
foundry
furnace
gantry
heat
heavy
hot
indoors
industrial
industry
inside
iron
ladle
large
loader
machinery
manufacture
manufacturing
melting
metal
metallurgical
metallurgy
mill
mold
molten
overhead
pipe
plant
pot
processing
production
safety
scoop
spark
steel
temperature
tube
work
workshop