Qauv1
Qauv2
Qauv3
Me mem quav naim
Txiv hmab txiv ntoo thiab zaub lub hnab nyoos ntawm cov ntaub ntawv raw yog polyethylene kuj customless kuj yog cov kev xav tau ntawm lub hnab nqa tam sim no tseem muaj ntau cov ntawv thov.
Txiv mab txiv ntoo thiab zaub noj zoo mesh hnab cov khoom lag luam yog muab faib ua cov ntsiab lus hauv qab no:
1. Cov pa ntawm cov khoom lag luam yog qhov zoo heev, muaj cov txiv hmab txiv ntoo thiab zaub tsis yooj yim rau qhov tsis zoo.
2. Cov khoom muaj qee qhov kev xav.
3. Cov khoom lag luam yog ntau dua.
4. Cov khoom tsis yooj yim deformed.
5. Cov khoom yog muaj zog thiab tuaj yeem thev hnyav.
6. Cov khoom lag luam muaj ntau dua.
7.
8. Cov khoom lag luam yog tus nqi qis, yooj yim nqa.