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Know Your Plastics | GOOD
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RECYCLING “polypropylene” on an open fire (pp 5)
Plastics that are safe to reuse in your home
Polyethylene vs Polylpropylene...How do They Differ?
What Do The Plastic Codes Mean
Mixed Plastic Recycling: PP and HDPE materials Sorting
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Uses of Recycled Polypropylene
Waste Plastic Recycling Machine | How to recycle PP, PE into plastic pellets and granules?
What Numbers of Plastic are Recyclable?
Your Plastic Recycling Safety Guide
Use the Triangle Codes on Plastics to Help Protect You From Estrogenics
What Does The Number On Plastic Bottles Mean? | Plastic Bottles' Codes And Safety For Reuse
All About Plastics: #5 Polypropylene
plastic recycling & resin identification codes