Technical yam ntxwv:
Qhov kev faib ua feem ntawm cov ntaub ntawv saum npoo hauv kev sib xyaw co-extrusion tuaj yeem tswj tau qis dua 10%.
Cov ntaub ntawv ntws ntxig tuaj yeem hloov kho kom zoo rau kev faib khoom thiab sib xyaw ua ke ntawm txhua txheej ntawm cov khoom ntws. Tus tsim ntawm kev hloov pauv sai sai ntawm cov txheej txheem sib xyaw
Cov qauv sib xyaw ua ke yog yooj yim rau kev teeb tsa thiab tu thiab tuaj yeem siv rau ntau yam khoom siv hluav taws xob.
