英文關鍵字
aluminum
automated
automation
automobile
business
cam
cnc
cut
cutter
drill
engine
engineering
equipment
factory
head
heavy
holder
industrial
industry
inside
iron
line
lubrication
machine
machinery
machinig
machining
manufacture
manufacturing
material
mechanical
metal
metalwork
metalworking
mill
milling
modern
monochrome
plant
power
precision
processing
production
steel
technology
tool
turning
white
work