Cling zaj duab xis tau muab faib ua peb pawg:
1. Thawj yog polyethylene (PE). Cov khoom siv no tuaj yeem siv rau kev ntim zaub mov thiab yuav siv tau los ua kom txiv hmab txiv ntoo thiab zaub.
2. Qhov thib ob yog polyvinyl chloride (PVC). Cov khoom siv no kuj tseem siv tau rau cov ntawv ntim zaub mov.
3. Qhov thib peb yog cov tshuaj polyvinylidene chloride (PVDC), uas yog siv rau cov ntim khoom noj, hams thiab lwm yam khoom siv. Lub hnab yas PE thiab cov PVDC hauv peb hom yeeb yaj kiab no muaj kev ruaj ntseg rau tib neeg lub cev thiab siv tau nrog kev ntseeg siab. PVDC cling zaj duab xis muaj cov tshuaj carcinogenic thiab tsim kev puas tsuaj rau tib neeg lub cev.
