機器
activity
asphalt
asphalting
background
bulldozer
color
construct
construction
design
drawing
engineering
equipment
flat
graphic
heavy
highway
icon
illustration
industrial
industry
job
machinery
metal
pavement
paver
paving
press
pressure
repair
road
roadwork
roll
roller
sign
single
slow
steamroller
street
tar
technology
transport
transportation
truck
ui
vehicle
wheel
work