英文關鍵字
architecture
armature
blue
build
building
carcass
clear
closeup
construct
construction
corrosion
day
design
detail
equipment
foundation
hard
industrial
industry
iron
ironwork
large
material
metal
metalwork
modern
motion
part
piece
pile
production
professional
reinforcement
rod
rusty
site
sky
steel
strong
stuff
sunny
thin
tool