Cov paj rwb ntaub qhwv feem ntau yog ib qho me me ntawm paj rwb txog li 5-6 cm nyob ntev ua los ntawm paj rwb lossis ntawv pulp. Tus nqi ntawm cov ntaub paj rwb muag nyob rau hauv lub tsev loj yog li ntawm 5-6 yuan thiab yog siv tau ntev heev. Cov hom zoo dua tus nqi kwv yees li kaum tawm yuan. Nws muag hauv cov txee tshuaj pleev ib ce, thiab muaj ntau yam siv rau kev siv cov ntaub qhwv. Lub hom phiaj tseem ceeb yog tshem tawm cov pleev, vim tias nws txoj kev ntxhib los mos mos thiab nws tsis yooj yim rau koj lub ntsej muag thaum tshem tawm cov pleev, thiab nws zoo nkauj heev los siv rau sab saum toj ntawm toner, thiab nws tseem yuav tshem tawm cov pleev kom huv. Ntawm chav kawm, lub paj rwb ntaub qhwv kuj tseem yog paj rwb ntaub tuaj yeem siv tau rau pleev. So cov tshuaj pleev muaj cov nyhuv ntxuav kev ua haujlwm thib ob thiab yog cov kauj ruam uas tsis tuaj yeem zam rau kev tu tawv nqaij.
