英文關鍵字
automated
automation
cnc
cut
cutter
cutting
drill
engine
engineering
factory
fasteners
grinding
hard
heavy
industrial
industry
inside
instrument
iron
line
lubrication
machine
machinery
machining
manufacture
manufacturing
material
mechanic
mechanical
metal
metalwork
metalworking
mill
milling
modern
molds
monochrome
operating
plant
precision
pressure
process
processing
steel
technology
tool
turning
white
work