Kev Paub

Dab tsi cement rau pob zeb yog ib lo lus nug tseem ceeb uas yuav tsum tau xav txog thaum pib ntawm txhua qhov kev tsim kho uas muaj cov pob zeb ua vaj

Qhov twg yuav cement thaiv ua tshuab

Vim li cas hollow cib siv rau kev tsim kho

Yuav ua li cas pob zeb blocks yog tsim los ntawm block ua tshuab

Ntau npaum li cas blocks tshuab

Tus nqi cog qoob loo ntau npaum li cas

Tag nrho tsis siv neeg thaiv ua tshuab nqe

Cement bricks yog ib qho ntawm cov khoom siv nrov tshaj plaws thiab feem ntau siv hauv tsev hauv kev tsim kho. Cov cib no paub txog lawv cov kav ntev,

Hollow block ua txheej txheem

Cib thaiv ua tshuab nqe hauv Is Nrias teb

Ntau npaum li cas kom muaj ib lub block machined

Yuav ua li cas ua ib lub cement thaiv ua tshuab