Muaj ob peb yam uas yuav tsum tau xav txog thaum xaiv ib lub hnab yas hloov tau yooj yim saw conveyor rau ib daim ntawv thov tshwj xeeb 1. Cov yam ntxwv ntawm cov khoom thauj: Cov yam ntxwv xws li qhov hnyav, cov duab, qhov loj, qhov kub, qhov av noo, thiab lwm yam ntawm cov khoom thauj khoom yuav tsum tau co.. .
Nyeem ntxiv