英文關鍵字
action
aerospace
arm
automated
blaze
burn
burning
business
closeup
cnc
computer
construction
copy
cut
cutter
cutting
danger
energy
engineering
equipment
factory
fire
flames
flat
heat
horizontal
hot
industrial
industry
intense
iron
laser
lasercutting
light
line
lpg
machine
machinery
machining
manufacture
manufacturing
material
mechanical
melting
metal
metallurgy
metalwork
modern
plasma
precision
processing
production
science
sheet
space
spark
steel
tech
technology
tool
treatment
weld
welding
work
working
workpiece