金属産業
機器
architecture
arrangement
assemble
background
block
build
building
buildings
closeup
construction
corrode
corrosion
crane
dense
development
elements
engineering
heavy
industrial
industry
iron
machinery
manufacture
mass
material
metal
metallic
object
objects
packed
panel
parallel
pile
plates
progress
reassemble
rusty
stack
steel
structure
surface
texture
trestles
urban
working