Kev faib tawm cov tshuab luam ntawv thiab dyeing pabcuam
Kev pabcuam luam ntawv thiab zas xim tuaj yeem muab faib ua cov pabcuam thiab luam ntawv cov tshuab ua haujlwm. Cov koom haum pabcuam muaj xws li cov nplaum, cov tuab tuab, cov sawv cev sib txuas, emulsifiers, cov muag muag, cov neeg sawv cev tiv thaiv kab mob thiab cov khoom siv tiv thaiv kab mob, thiab lwm yam.