機器
abandoned
aluminum
auto
automobile
automotive
background
block
camera
car
closeup
energy
engine
equipment
garage
gears
hand
head
industrial
industry
iron
leaf
machinery
material
mechanic
mechanical
metal
motor
new
object
old
part
parts
pile
recycle
repair
rust
rusty
scrap
second
shiny
spare
steel
technology
texture
tool
transportation
used
vehicle
white