Eli nqaku liphonononga umahluko phakathi kwe-PET (i-polyethylene terephthalate) kunye ne-PVC (i-polyvinyl chloride) amaphepha ngokubhekiselele ekusebenzeni, izicelo, kunye nefuthe lokusingqongileyo. Ngokuthelekisa ukubunjwa kwezinto zabo, iipropathi ezibonakalayo, kunye nokusetyenziswa kumashishini ahlukeneyo, baya kufumana ukuqonda okubanzi kwezi zinto zimbini zeplastiki ezisetyenziswa ngokuqhelekileyo.
