機器
aluminum
auto
automatic
automobile
automotive
bearings
belt
blades
bracket
camshaft
clutch
cogwheel
cooling
coupling
cylinder
diesel
drive
energy
engine
fan
fixation
gear
grey
impeller
industrial
isolated
metal
motor
muff
new
nut
part
power
pulley
repair
ribs
rotation
service
sleeve
spare
steel
transportation
valve
vehicle
viscous
volution