background
chemical
chemistry
clear
closeup
colorless
density
ethylene
factory
fine
grained
granul
horizontal
industrial
industry
injection
low
material
mold
molding
particle
pellets
plastic
polyethylene
polymer
polymerization
production
protoplast
pvc
raw
recycling
research
resin
small
technology
thermoplastic
translucent
transparent
white
working