Kev xaiv cov khoom ntawm lub hnab ntim biscuit

1. Kev ntim khoom: cov khoom thaiv zoo, muaj zog shading, roj tsis kam, siab siab, tsis muaj ntxhiab, erect ntim

2. Cov qauv tsim: BOPP/EXPE/VMPET/EXPE/S-CPP

3. Vim li cas thiaj xaiv:

3.1 BOPP: Zoo rigidity, zoo luam ntawv, thiab tus nqi qis

3.2 VMPET: zoo barrier zog, zam lub teeb, oxygen, thiab dej

3.3 S-CPP (hloov CPP): zoo kub kub sealability thiab roj kuj