機器
accuracy
background
bearing
chrome
closeup
component
concepts
cylindrical
detailed
engine
engineering
equal
equipment
factory
groove
hardware
industrial
industrial equipment
industry
item
machine part
machining
macro
manufacturing
many
material
metal
new
objects
part
piece
precise
product
production
repeating
round
same
shiny
sleeve
steel
surface
technology
thread
tool
turning