英文關鍵字
plastic
pellets
jump
grid
vibrating
table
production
granular
polyethylene
raw
materials
polyvinyl
chloride
spilled
out
granules
polymer
used
products
design
abstract
border
pattern
nature
technology
recycling
industry
polypropylene
particle
thermoplastic
granulate
molding
polystyrene
chemical
chemistry
pollution
saving
manufacturing
polymeric
manufacturers
extrusion
recycled
resin
pvc
recyclable
element
plant
industrial
grain