機器
accessory
axle
black
cart
caster
casters
castor
chair
circle
closeup
construction
design
dolly
equipment
floor
furniture
gadget
hardware
heavy
industrial
industry
isolated
metal
metallic
modern
object
office
pavement
render
repair
road
roll
roller
round
rubber
small
steel
street
swivel
tire
tool
transport
transportation
trolley
trundle
unattached
wheel
wheels
white