機器
background
blast
bright
building
cast
casting
construction
equipment
factory
fire
foundry
furnace
glowing
heat
heavy
hot
industrial
industry
interior
iron
light
line
machinery
manufacture
manufacturing
melting
metal
metallic
metallurgical
metallurgy
mill
molten
plant
power
process
production
red
smelting
steel
steelworks
technology
temperature
work
worker
workplace
workshop