英文關鍵字
automation
bobbin
business
cardboard
cellulose
closeup
color
conveyer
conveyor
engineering
equipment
factory
indoor
industrial
industry
line
machine
machinery
making
manufacture
manufacturing
many
material
metal
mill
modern
motion
new
old
operation
paper
papern
plant
press
process
processing
produce
product
production
recycling
roll
roller
rotate
sheet
shop
spin
steel
technical
technology
turn
white
work
workplace
workshop