Cov hnab yas mesh feem ntau siv:
PP (Polypropylene):muaj zog, sib dua, thiab zoo tagnrho rau cov khoom tsim tawm
PE (Polyethylene):yooj ywm thiab siv nyiaj tsawg
Cov yas uas ua los ntawm cov khoom siv biodegradable lossis biodegradable:tshwm sim vim yog cov cai ib puag ncig