Pulp thiab Ntawv Kev Lag Luam
Hauv kev lag luam ntawv, ntau lub tshuab foob yuav tsum tau siv rau hauv cov twj tso kua mis, kho kom zoo, tshuaj ntsuam xyuas, sib tov ntawm cov ntaub so ntswg, cov tshuaj dub thiab dawb, chlorine thiab txheej.
Nyob rau hauv xyoo tas los no, nrog kev nce ntxiv ntawm cov ntawv ua thiab cov ntawv ua cov txheej txheem, nrog rau kev xav tau ntawm cov ntawv ua thiab cov ntawv ua cov dej khib nyiab, nws yog qhov tsim nyog los ua kom tau raws li qhov xav tau ntawm kev lag luam ua ntawv kom siv tau zoo dua. ntawm cov dej khib nyiab.