英文關鍵字
aluminum
brandnew
cnc
commercial
cut
cutter
efficiency
engineering
equipment
factory
flat
gas
hard
heat
heavy
horizontal
hot
industrial
industry
iron
laser
machine
machinepart
machinery
manufacturing
material
metal
metalindustry
metallic
metallurgy
metalwork
milling
objects
pipeline
plasma
plasmacutter
plate
production
roll
shiny
sparks
stainless
steel
steelworks
technology
tool
trade
tube
work
workers