機器
accessories
auto
automobile
automotive
bike
cam
car
cog
concept
connect
crank
crank shaft
crankshaft
cylinder
engine
engineering
equipment
flywheel
garage
gear
gearbox
industrial
industry
machinery
maintenance
manufacture
manufacturing
material
mechanical
mechanics
metal
motor
motorcycle
part
piston
pistons
power
repair
service
shaft
spare
stroke
technology
transmission
transport
transportation
vehicle
wheel
working