^ a b PP&A stand for polyester, polyamide and acrylate polymers; all of which are used to make synthetic fibers. Care should be taken not to confuse it with polyphthalamide (PPA) ^ a b c durchmesser eines kreises e High density polythene (HDPE) is used for making sturdy containers; transparent https://fernandotzfjn.wikipresses.com/4477526/top_jeweils_fünf_plastic_urban_news