英文關鍵字
accuracy
activity
automation
background
blue
closeup
cnc
coolant
cooling
detail
drilling
engineering
equipment
factory
hole
hose
industrial
industry
iron
lathe
liquid
machine
machining
manufacture
metal
metalworking
modern
moving
part
plant
pour
precision
process
production
shavings
steel
swarf
technology
tool
tube
turning
vertical
workpiece