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He mea hanga tā mātou ngongo whakapaipai D19mm ki te polyethylene (PE) kounga teitei, he hoa taiao, kāore he paitini, ā, e tutuki ana i ngā paerewa o te ao. He angiangi engari he ngāwari te kaha, ka taea te whakarite mai i 10ml ki te 25ml, he mea e tika ana mō ngā kirimi kanohi, ngā hinu kiri, ngā kirimi kanohi, me ētahi atu hua tiaki whaiaro iti te kaha. He maha ngā kōwhiringa potae, tae atu ki ngā taupoki tīwiri, ngā taupoki hurihuri, me ngā taupoki pūwero, kia whai wāhi atu, kia whai āhua papai hoki. Ngā kōwhiringa tānga ka taea te whakarite pērā i mata hiraka, tā wera, tapanga, tānga whakawhiti, ā, ko ngā pānga whakarara e whakaatu ana i te tuakiri o te waitohu. Kei te wātea ngā rauemi e pai ana ki te taiao, e whai wāhi ana ki te oranga tonutanga, ā, he mea tino pai tēnei ngongo mō te tiaki kiri kawe me te takai tauira.
