Lub tshuab luam ntawv raug tsim ua haujlwm rau cov khoom siv rau kev tshaj tawm xws li cov phau ntawv luam tawm, cov ntawv xov xwm, kev ntim thiab kho kom zoo nkauj, luam tawm luam tawm, chaw luam ntawv, nyiaj twv txiaj, thiab lwm yam. Lub tshuab luam ntawv nrog loj printing hom thiab kev luam ntawv tshwj xeeb yog tus thawj coj, uas ua rau kev loj hlob ntawm cov khoom siv pob khoom thiab kev tsim khoom siv.
