Feem ntau hais lus, ua tiav cov khoom noj pellet ntau lawm suav nrog cov khoom siv hauv qab no: pub zeb, pub batching thiab hnyav tshuab, pub tov khoom, pub pellet tshuab, pub txias, pub sieving tshuab, pub ntim tshuab, nyob rau hauv ib lo lus, ua tiav pub pellet ntau lawm kab muaj ntau yam khoom siv, thiab kev sib koom ua ke ntawm cov khoom sib txawv yog qhov tseem ceeb heev.
Thaum muas khoom, ntxiv rau kev txiav txim siab qhov zoo thiab kev ua haujlwm ntawm cov cuab yeej, koj kuj yuav tsum tau xaiv raws li koj tus kheej cov kev xav tau los xyuas kom meej tias cov kev ua tau zoo thiab kev ua haujlwm zoo tuaj yeem txhim kho. Koj tuaj yeem siv lawv raws li koj xav tau tiag tiag.
