英文關鍵字
aerospace
automated
automobile
blaze
boring
building
cnc
cut
cutting
danger
electronic
energy
engineering
equipment
fabrication
factory
flames
flat
heat
industrial
industry
iron
laser
lasercutting
light
lpg
machine
machinery
machining
manufacture
manufacturing
mechanical
melting
metal
metalwork
object
plasma
plate
precision
processing
production
sheet
steel
tech
technology
tool
treatment
welding
work
workshop