機器
accuracy
caliper
closeup
drawing
education
engineering
equipment
factory
gage
gauge
geometry
hand
hardware
hardware tools
inch
industrial
industrial background
industry
instrument
iron
lathe
macro
man
manufacturing
measurement
measurement tools
measuring tools
mechanical
metal
metallic
metalwork
meter
micrometer
micrometer caliper
mold
office
pattern
pen
pencil
precision
production
scale
steel
technology
tool
turning
work
worker
workshop