機器
3d
alloy
automobile
axis
background
block
chrome
closeup
combustion
crank
crankshaft
cylinder
design
detail
energy
engine
engineering
equipment
gear
industrial
interior
iron
isolated
mechanical
mechanism
metal
motion
motor
object
oil
part
piston
plate metal
power
render
repair
ring
rod
service
shiny
silver
spare
steel
technology
transport
truck
used
vehicle
white