金属産業
alloy
burning
business
business finance and industry
cast iron
color image
craft
craft product
cylinder
dark
equipment
expertise
factory
fire natural phenomenon
flame
foundry
furnace
glowing
heat temperature
industrial equipment
industry
iron metal
making
manufacturing
material
melting
metal
metal ore
metallic
metallurgy
metalwork
molding a shape
molten
motion
orange color
pouring
production line
rejection
silver metal
silver colored
steel
steel mill
technology
watt
working
workshop