機器
3d rendering
assembly
background
bolt
bolthole
chrome
closeup
construction
dimensional
equipment
fasten
fastener
fastening
fix
hand
hardware
hex
hexagon
industrial
industry
iron
isolated
locksmith
macro
mechanic
mechanical
metal
metallic
nobody
nut
object
one
products
reflection
repair
screw
service
set
shape
shiny
silver
spanner
stainless
steel
technology
tighten
tool
white
work