Thawj kauj ruam yog ntxuav thiab ua kom cov rau tes, tshem tawm cov tawv nqaij tuag thiab plua plav tawm ntawm cov ntsia hlau.
Cov kauj ruam thib ob yog siv cov txheej nyias nyias ntawm primer thiab teeb rau 30 vib nas this, tom qab ntawd thov ib txheej nyias ntawm cov xim pleev xim rau cov nplaum nplaum thiab teeb rau 1 feeb.
Kauj Ruam 3: Siv cov txheej thib ob ntawm cov xim pleev xim rau cov kua nplaum thiab lub teeb rau 1 feeb, tom qab ntawd siv cov txheej txheem sib khi kom ua kom lub ntsej muag ci thiab lub teeb rau 2 feeb.
Thaum kawg, siv cawv los txhuam cov ntsia hlau. Feem ntau, lub sijhawm teeb pom kev zoo yuav tsum maj mam txuas ntxiv raws li kev kho mob ntawm tus ntsia thawv polish nplaum.