機器
alloy
automated
bearing
blade
closeup
cnc
construction
creation
cutting
damaged
dirty
drilling
dust
engineering
equipment
factory
foundry
grunge
grunged
high
industry
lathe
machinery
machining
manufactory
manufacturing
messy
metal
milling
placard
processing
products
rolling ball
rust
rusted
scratched
shabby
space
speed
spinning
stained
stainless
steel
technology
threaded
tool
turbine
turning
weathered
work
working