英文關鍵字
accuracy
automation
business
cam
cnc
cut
cutter
cutting
drill
engine
engineering
equipment
factory
fasteners
grinding
heavy
industrial
industry
instrument
iron
lathe
lubrication
machine
machinery
machining
manufacture
mechanic
mechanical
metal
metalwork
metalworking
mill
milling
molds
monochrome
operating
plant
power
process
processing
production
steel
technology
tool
turning
white
work