機器
above
abstract
background
brass
bright
bunch
carpentry
chrome
closeup
construction
cross
detail
engineering
equipment
fasteners
focus
frame
golden
group
hardware
head
helix
image
industry
instrument
iron
large
macro
metal
nobody
nuts
object
part
pattern
row
screw
selftapping
shiny
shot
steel
textured
tool
wood
work
worker