機器
abstract
backgrounds
brass
bronze
chips
curling
cut
cutter
engineering
factory
fastening
flake
garbage
glossy
golden
hard
industrial
industry
lathe
lathing
machinery
manufacture
materials
mechanic
metal
metalwork
metalworking
nonferrous
nozzle
pattern
pile
pipe
recycle
rotation
rubbish
scrape
simplicity
spares
steel
strong
stuff
swarf
technology
tool
turn
turning
turnings
twist
work