20 Packaging materials of plastic, namely, containers, clamshell containers, containers in the nature of bottles, trays, lids, tubs, thermoforms, and preform containers; packaging materials formed from recycled plastic, namely, containers, clamshell containers, trays, lids, tubs, containers in the nature of bottles, thermoforms, and preform containers; plastic packaging materials in the nature of containers, clamshell containers, trays, lids, tubs, containers in the nature of bottles, thermoforms, and preform containers, all formed from Amorphous Polyester (APET) resin, pellets, preforms, sheets or thermoforms, and/or recycled APET flake, pellet, pellet preforms, pellet bottles, pellet sheets or pellet thermoforms