機器
alloy
auto
automobile
automotive
bearing
black
block
car
chrome
close
closeup
colorful
crank
crankshaft
cut
detail
energy
engine
engineering
fast
fix
fuel
garage
gear
gearbox
generator
hose
industrial
industry
iron
manufacturing
mechanic
metal
metallic
modern
motor
muff
new
part
piston
polished
ride
shiny
soft
technology
transmission
up
valve
vehicle