機器
activity
architecture
background
blue
build
building
business
cable
cargo
city
concrete
construction
crane
design
development
engineering
equipment
frame
heavy
high
hoist
hook
house
industrial
industry
iron
isolated
lift
lifting
machinery
metal
modern
new
power
project
site
sky
steel
structure
tall
technology
tool
tower
transport
transportation
urban
white
work
yellow