英文關鍵字
accessory
auto
automotive
background
bolt
bolts
car
chrome
closeup
detail
engineering
equipment
gear
group
hardware
heap
industrial
industry
iron
item
machine
machinery
mechanic
mechanical
metal
metallic
nut
object
parts
pile
power
repair
round
screw
set
silver
small
spare
stack
stainless
steel
technology
texture
tool
vehicle
wheel
workshop