機器
air
background
bag
bags
blow
business
control
direction
environment
equipment
extruder
extrusion
factory
film
industrial
industry
machinery
making
manufacture
manufacturing
material
metal
modern
packaging
part
pellets
plant
plastic
plastics
polyethylene
process
product
production
roll
roller
running
sheet
steel
technology
textile
tool
tube
wheel
white
work
wrap