燃やす
automotive
cast iron
casting
chemical
composition
dangerous
engineering
factory
ferrous
fire
flame
flash
founder
foundry
fumes
furnace
green sand
hard
heat
heavy
heavy industry
high
hot
industrial
industry
iron
iron manufacturing
ladle
light
liquid
manual
manufacturing
melt
metal
metallurgy
mold
molten
molten metal
part
pattern
pouring
quality
sand
technology
temperature
toxic