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Matireyi eCPET anogadzirwa sei? Wakambozvibvunza here kuti chikafu chako chinoiswa sei mumapaketi? Matireyi eCPET anoita basa rakakosha mukurongedza chikafu. CPET, kana kuti Crystalline Polyethylene Terephthalate, chinhu chinoshandiswa zvakasiyana-siyana chinozivikanwa nekusimba kwayo uye kuchengetedzeka kwayo.