Ka tūmatawhiti te āhuatanga o ngā mahi whakamahere i te PET (Polyethylene Terephthalate) kōhuri wera ki ētahi atu momo kōhuri, he maha ngā take nui e pā ana, ā, ko Guangdong EKO Film Manufacture Co., Ltd. te kaiarahi i te whenua o ngā rara moa tuhinga i te tau 1999, ka taea e rātau tēnā whakaaturanga whaihua. Ko tētahi o ngā hiranga nui rawa o te kōhuri wera PET, ko tana kawe pai me te mohio. Ki te hanga ki runga i tētahi papa, ka whakaatu ia i ngā tae me ngā kōrero i raro nei, hei whakatika i te whakaputu, hei whakamahia i tētahi whaihua pai me te whakarite pai. Ki te whakatupu atu, ko ētahi atu kōhuri, pēnei i ēnei i waihanga mai i ngā rara moa nui rawa, ka heke i ngā tae, ka heke i te whakapakari o te whakaaturanga o te rara moa. Ko tēnei ka whakanui ake i te kōhuri wera PET hei whakamahere mō ngā tūtohi i te mea nui kei reira, pēnei i te whakapakoko i ngā taonga whakamahiko, ngā kōrero whai mana, me ngā rara moa whakapuhikitanga. Mō te rangatira me te whaiherehere, ka whaihua anō hoki te kōhuri wera PET i ētahi atu take. Ko te PET he rara moa whaihua, ka kitea te pai o tana whakahoki ki ngā pūtake kaiwhakaheke, kaiwhakawehewe, me ngā pūtake wehewehe. Ka taea e ia te whakamana i te whakahaere noa, me te ao tahumaunga, kia tutuki ai te rara moa kaihangahanga hei whakamahere mō tētahi wā roa. Ko ētahi atu kōhuri, āpōpō ana i ngā rara moa iti rawa rānei, kaore i te whakamana i te whakahaere, ka heke i te wā o te rara moa kaihangahanga. Ko te PET kōhuri wera ka whaihua i te whakamahere o te whiu. Ka ea koe te hono ki te papa whakamahere me te wera me te whatumanawa, ka hangaia e koe tētahi hono whaihua me te wā roa. Ko te mahi whakamahere kōhuri ka pai, ka tika, ka ea te kōhuri ki ētahi atu rara moa, pēnei i te kākahu, te kāri, me ētahi momo plastic. Ko ētahi atu kōhuri, ka hiahia ki ētahi take whakamahere kōhuri, kaore i te ea ki ētahi papa, ka whakaiti i tana whaiwā. He mea tuatahitia ki te āhuatanga taiao, ko te PET he rara moa whakaoranga, ka whaihua te kōhuri wera PET mai i Guangdong EKO Film Manufacture Co., Ltd. ki te whakaoranga