英文關鍵字
action
automated
automobile
blaze
boring
building
business
cnc
construction
cut
cutter
cutting
energy
engineering
engraving
equipment
factory
fire
flat
health
heat
industrial
industry
iron
laser
light
lpg
machine
machinery
machining
manufacture
manufacturing
material
mechanical
metal
metalwork
metalworking
plasma
precision
processing
production
sheet
shop
space
steel
technology
tool
welding
work