Dab tsi yog cov khoom siv ntawm lub shredder?

Feem ntau ntawm cov shredders yog tsim los lis cov ntawv, feem ntau yog daim los yog ib daim hlab. Yog tias koj yuav rub lub khoos phis tawj cov ntawv luam tawm, nws yog ib lub tswv yim zoo los xaiv cov qauv nrog lub qhov dav dav, kom cov ntawv tuaj yeem ncaj qha mus rau hauv lub tshuab ua haujlwm. Tseem muaj cov shredders uas siv lub hopper pub kom lawv tuaj yeem tuav cov ntawv crumpled. Kuj tseem muaj cov shredders uas muaj peev xwm tuav ntau yam khoom. credit cards, video tapes lossis floppy disks tuaj yeem raug txiav los ntawm cov tshuab no.