機器
architecture
beam
block
blue
build
building
business
cargo
cement
city
commercial
concrete
construction
crane
development
engineering
equipment
estate
framework
gray
hat
heavy
high
hoist
industrial
industry
iron
job
lift
lifting
metal
metallic
modern
move
raise
rise
site
sky
steel
structure
tall
tools
tower
urban
weight
welder
wheel
work
yellow