Close-up of plastic polymer granules. hand hold Polymer pellets. polymer plastic. compound polymer. Hands in rubber gloves hold plastic pellets.

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acetate agent beads biodegradable chemistry circle coloring compound contamination density dye ethylene extrusion factory gel granulate granules hdpe heap hydrogel industry injection lab laboratory ldpe lldpe macro material pellet pet petrochemicals pigment pipe plastic polyethylene polymer polypropylene polystyrene pp production pvc raw reaction recycle research resin rubber science thermoplastic white
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