Eyona nto ikhethekileyo yale mveliso kukuba'izinto eziphathekayo ziyi-50% zenziwe ngephepha kunye ne-50% zenziwe ngeplastiki ngoko ke le ngxowa i-50% iyalahleka.
Olona phawu lukhethekileyo lwale ngxowa yephepha esezantsi ethe tyaba ngumaleko wokuqala liphepha elikhethekileyo elinokwakheka okukhethekileyo kwaye imbonakalo iphezulu kakhulu.Kwaye umaleko ophakathi yifilimu yenayiloni enokusebenza kakuhle komqobo kunye nokumelana ne-puncture, Ngomaleko wokugqibela we-polyethylene, ukubonakala kunye nokusebenza kwengxowa yonke kuhlanganiswe ngokugqibeleleyo.