According to the molecular formula:
1 Isoprene rubber plastic, such as: LDPEHDPELLDPEPPEEAEVAPB-1TPX
2 Polyethylene plastic (it is also isoprene rubber plastic, because of the many types, the key, the list item), such as: PSHIPSABSAASACSMBSAS
3 Methacrylate plastic, such...
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