Kev paub

Puas tsim nyog yuav cov ntaub so ntswg rov siv dua?

Puas muaj kev txwv rau qhov loj thiab qhov hnyav ntawm kraft ntawv cement sacks?

Yuav ua li cas ib leeg -fold tes phuam piv rau lwm hom phuam so tes ntawm tus nqi?

Dab tsi yog qhov zoo ntawm kev siv ib zaug - quav tes phuam hauv kev lag luam?

Puas yog ib qho - phuam so tes haum rau siv hauv kev lag luam?

Dab tsi yog qhov cuam tshuam ib puag ncig ntawm kev siv kraft ntawv rau cov hnab cement?

Cov ntawv thermal puas ua haujlwm thaum huab cua txias?

Dab tsi yog qhov txiaj ntsig ntawm kev siv lub valve hauv lub hnab cement?

Dab tsi yog qhov zoo ntawm kev siv qib siab - qib ntawv pulp hauv kev tsim cov ntaub so ntswg?

Cov txheej txheem luam ntawv cuam tshuam li cas rau qhov zoo ntawm cov ntawv tso quav tso quav?

Dab tsi yog cov ntsiab lus tseem ceeb uas yuav tsum tau xav txog thaum xaiv cov ntim khoom tsim nyog rau tag nrho -xim daim ntawv napkins?

Kuv puas tuaj yeem muab kuv tus kheej tsim rau tag nrho - xim napkin luam ntawv?