機器
architecture
building
business
cement
clay
commercial
concrete
construction
container
copy space
environment
equipment
facility
factory
giant
gravel
grey
heavy
industrial
industry
limestone
machinery
manufacture
manufacturing
mountain
pipes
pipework
plant
process
processing
processor
produce
production
rock
sand
silo
site
steel
stone
storage
structure
tank
technology
tower
tree
view
work
workplace