Cov khoom tsis muaj tshuaj lom, tsis muaj ntxhiab, tsis muaj xim pob tshab, zoo li cov khoom siv iav tawg, cov khoom muaj pob tshab siab, xa tau > 90%.
Siv dav hauv cov khoom siv hluav taws xob, cov khoom siv rau cov neeg siv khoom, cov ntaub ntawv siv hauv tsev.
Hauv lub hnab ntim khoom 25kg lossis 750kg.
