Dab tsi yog tus tsav dav hlau nqa

Ib lub thoob elevator txuas ntxiv yog qhov txuas txuas ntxiv uas siv cov hoppers chapnel tsau rau cov traction saw lossis kab xev thauj cov khoom khawb av lossis ze li ntawm sab xis. Nws yog tsuas yog siv los nqa cov ntaub ntawv los ntawm qis rau siab, haum rau ntau chav tsev, tshuab siv hluav taws xob, lub teeb kev lag luam, cov khoom siv lub teeb pom kev zoo li hmoov av, granular , thiab tej daim me me.