SP428C kev lag luam-qib ntawv me me shredder yog cov ntawv cog lus me me uas tsim nyog rau cov lag luam me thiab nruab nrab-cov tuam txhab loj, cov chaw tsim khoom thiab lwm yam xwm txheej. Nws tsis tsuas yog zam qhov teeb meem ntawm cov ntawv loj loj nyob hauv qhov chaw, tab sis kuj muaj kev lag luam - qib kev ua tau zoo, kev daws qhov mob ntawm cov ntaub ntawv batch thiab cov ntaub ntawv pov tseg.