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Cov kev cai luam tawm lub hnab ntim rov qab biodegradable
Beyin packing lub hnab ntim biodegradable tsis yog PLA raws lossis cov pob kws cov khoom siv, cov khoom peb siv tuaj yeem pab rhuav tshem cov yas mus rau cov ntawv me me uas tuaj yeem decomposed los ntawm microorganism
