Cov ntaub ntawv raw khoom

Cov ntaub ntawv tseem ceeb ntawm kev tsim cov ntawv luam tawm muaj xws li cov ntoo ntshiab, cov ntoo hauv paus ntoo, thiab cov ntoo ntoo.
Los ntawm kev nyab xeeb thiab kev noj qab haus huv, cov paj ntoo ib txwm muaj txiaj ntsig zoo dua rau cov ntoo ntshiab vim tias cov ntoo hauv ib txwm siv ntoo, reeds, straw, paj rwb, thiab lwm yam khoom siv raw, thaum cov ntoo ntshiab tuaj yeem siv cov khoom pov tseg. Tab sis qhov zoo tshaj plaws ntawm peb yuav tsum yog cov ntoo pulp. Native ntoo pulp, raws li lub npe qhia, yog ib txwm muaj pulp ua los ntawm ntoo. Ua ntej, nws siv cov ntoo fibers, thiab qhov thib ob, nws siv cov khoom siv raw yam tsis muaj khib nyiab ntxiv.