機器
automated
automation
automotive
background
closeup
construction
control
cut
cutter
detail
engine
engineering
equipment
factory
heavy
hole
industrial
industry
iron
lathe
machinery
machining
manufacture
manufacturing
mechanical
mechanism
metal
metallic
metalwork
metalworking
modern
motor
part
plant
power
precision
process
processing
production
stainless
steel
technology
tool
tooling
work
workshop