Txoj siv tawv conveyor uas khoov rau lub tshuab cantrius rau kev nqa khoom thiab rov qab siv hluav taws xob loj kev npaj, txij nkawm, thiab kev tswj hwm ntawm cov khoom siv sib txuas ua ke ntawm cov khoom siv hluav taws xob uas yog cov khoom siv hluav taws xob xws li cov xaim hluav taws xob uas yog cov khoom siv hluav taws xob xws li cov xaim hluav taws xob uas yog cov khoom siv hluav taws xob xws li cov khoom siv thee ,,, graas, culd, thiab qhob .
