英文關鍵字
conveyor
paper
machine
workshop
mill
industry
factory
plant
equipment
machinery
roller
metal
technology
industrial
manufacturing
indoor
product
business
work
conveyer
roll
interior
produce
modern
automation
production
line
making
mechanism
manufacture
packaging
process
processing
tech
workplace
iron
danger
shaft
automatic
footage
inside
movement
noise
robot
transportation
video
hd
cellulose
white