Sheet hlau ua yog ib lub tshuab hub uas cov kws tshaj lij hlau yuav tsum paub, thiab nws kuj yog ib qho tseem ceeb rau kev tsim cov ntawv hlau. Sheet hlau ua muaj xws li tsoos txiav, blanking, dabtsi yog khoov thiab stamping txoj kev thiab cov txheej txheem tsis, nrog rau cov qauv thiab txheej txheem tsis ntawm ntau yam txias-nias tuag, cov txheej txheem ua hauj lwm thiab kev ua hauj lwm ntawm ntau yam khoom siv, nrog rau cov txheej txheem tshiab thiab cov khoom siv tes ua tshiab. Sheet hlau ua ntawm qhov chaw yog hu ua sheet hlau ua.
