英文關鍵字
accuracy
automated
blaze
burning
cnc
cut
cutting
detail
electric
energy
engineering
equipment
fabricate
factory
flame
foundry
glowing
heat
industrial
industry
jet
laser
light
machine
machinery
manufacture
material
metal
metallurgy
metalwork
modern
motion
plant
plasma
precision
processing
production
professional
safety
sheet
sparks
steel
structure
technology
tool
torch
welding
work
workplace
workshop