Hlau kos duab duab puab tsis tsuas yog ua kom zoo nkauj xwb tab sis kuj tuaj yeem ua ib qho khoom siv sab hauv lossis sab nraum zoov thaum nws muab tso rau txhua qhov chaw. Cov duab puab hlau yog siv dav hauv ntau lub sijhawm, xws li toj roob hauv pes architecture, chaw ua si, vaj, tsev khaws puav pheej, khw hauv khw, chaw rau pej xeem, nyom chaw, tshav puam, thiab lwm yam. peb qhov zoo tshaj plaws los ua cov duab puab niaj hnub kom txaus siab rau peb cov neeg siv khoom. Tiv tauj peb txhua lub sijhawm yog tias koj xav yuav qee cov duab kos duab niaj hnub no.