Khoom noj khoom haus ntim Ziplock hnab ntim nrog kov qhov rais rau khoom qab zib khoom noj txom ncauj hnab Portable

Polyethylene yog ib qho kev lag luam thiab siv tau cov khoom qab zib ntim khoom siv rau cov khoom ntim xws li khoom qab zib thiab khoom noj txom ncauj. Feem ntau muaj ob hom: high-density polyethylene (HDPE) thiab low-density polyethylene (LDPE). PE cov khoom ntim cov hnab ntim khoom siv tau ruaj khov, pob tshab, thiab yooj yim rau kev ua, ua kom ntseeg tau qhov zoo thiab huv ntawm cov khoom qab zib.