機器
activity
architecture
background
blue
build
business
concrete
construction
crane
development
elevation
engineer
engineering
equipment
frame
heavy
high
hydraulic
industrial
industry
jib
job
level
lift
lifter
lifting
load
loader
luffing
machinery
metal
mobile
mover
overhead
powerful
rack
service
site
sky
steel
structure
tall
technology
tower
urban
vehicle
work
workplace
yellow