1. Polyethylene (PE): Polyethylene yog cov khoom siv yas uas muaj cov tawv tawv zoo thiab corrosion kuj. Cov tshuab txhaj tshuaj me me tuaj yeem siv los tsim cov khoom siv polyethylene xws li hnab yas thiab lub raj mis.
2. Polypropylene (PP): Polypropylene yog cov khoom siv yas uas muaj cov khoom siv zoo thiab ua kom sov. Cov tshuab txhaj tshuaj me me tuaj yeem siv los tsim cov khoom siv polypropylene xws li cov khoom siv hauv tsev thiab ntim khoom.
3. Polyvinyl Chloride (PVC): Polyvinyl chloride yog cov khoom siv yas uas siv tau nrog huab cua tsis kam thiab tshuaj tiv thaiv corrosion. Cov tshuab txhaj tshuaj me me tuaj yeem siv los tsim cov kav dej PVC, lub tes tsho hlau thaiv, thiab lwm yam khoom.
4. Polystyrene (PS): Polystyrene yog cov yas pob tshab uas muaj kev cuam tshuam zoo. Cov tshuab txhaj tshuaj me me tuaj yeem siv los tsim PS khob, thawv, thiab lwm yam khoom.
5. Polyester (PET): Polyester yog cov khoom siv yas uas muaj cov khoom siv zoo thiab cov pob tshab. Cov tshuab txhaj tshuaj me me tuaj yeem siv los tsim lub raj mis PET, ntim khoom noj, thiab lwm yam khoom.
