英文關鍵字
production
old
tool
workshop
metal
machine
lathe
vintage
close
plant
view
mature
control
detail
worker
iron
rod
technology
process
engineering
factory
equipment
industrial
steel
industry
machinery
metalwork
precision
cutter
manufacturing
mechanical
pulley
rotation
shaft
accuracy
feed
work
wheel
strap
chips
chuck
burning
metalworking
power
spin
closeup
rusty