Qhov zoo ntawmhlau ua tauCov khoom ntim khoom feem ntau suav nrog:
Siab zog thiab lub teeb yuag. Cov khoom ntim hlau muaj lub zog siab thiab lub cev nyhav, yog li cov phab ntsa tuab ntawm lub thawv ntim tuaj yeem nyias nyias, kom nws yooj yim rau kev thauj thiab khaws cia, thiab muaj kev tiv thaiv zoo rau cov khoom.

Cov luster tshwj xeeb thiab kho kom zoo nkauj. Cov khoom ntim hlau muaj qhov tshwj xeeb luster, yooj yim luam tawm thiab kho kom zoo nkauj, ua kom cov khoom zoo nkauj thiab zoo nkauj.
Zoo heev barrier zog. Cov khoom ntim cov hlau tsis tshua muaj kev xa tawm ntawm cov pa roj thiab dej vapor, thiab yog opaque, uas tuaj yeem zam qhov teeb meem tsis zoo xws li ultraviolet rays thiab tiv thaiv cov ntsiab lus los ntawm kev cuam tshuam ntawm ib puag ncig sab nraud.

Resistant rau qhov kub thiab txias.Hlau ntim cov ntaub ntawvmuaj qhov zoo ntawm qhov kub thiab txias tsis kam thiab tsim nyog rau cov khoom ntim hauv qhov sib txawv ntawm qhov kub thiab txias.
Corrosion thiab tshuaj tiv thaiv. Cov khoom ntim hlau muaj qhov ua tau zoo rau cov tshuaj lom neeg feem ntau, thiab tsim nyog rau kev ntim khoom nrog cov kev cai nruj rau cov khoom ntim xws li khoom noj thiab tshuaj.
Kev tiv thaiv ib puag ncig thiab rov ua dua tshiab. Cov khoom ntim hlau yog ib puag ncig zoo rau cov khoom siv rov ua dua tshiab uas tuaj yeem txo cov pa phem ib puag ncig thiab txuag cov peev txheej ntuj.
Kev siv dav dav thiab kev ruaj ntseg. Cov khoom ntim hlau yog tsim nyog rau kev ntim khoom ntawm ntau hom khoom, thiab muaj kev sib khi zoo thiab muaj zog, uas tuaj yeem tiv thaiv kev puas tsuaj sab nraud thiab zam cov khoom tsis zoo.
Kev ua haujlwm zoo. Hlau ntim cov ntaub ntawv yog ib qho yooj yim rau txheej txheem, cov txheej txheem ntau lawm yog yooj yim, thiab ntau lawm efficiency yog siab.
Kev lag luam. Tus nqi ntawm cov khoom ntim hlau yog qhov tsawg, tshwj xeeb tshaj yog nyob rau hauv kev tsim khoom loj thiab khaws cia ntev, uas tuaj yeem txo cov nqi ntim khoom thauj.
Yooj yim qhib thiab nqa. Cov thawv ntim hlau feem ntau yog tsim los qhib tau yooj yim, yooj yim rau cov neeg siv khoom siv, thiab tsis yooj yim tawg, yooj yim nqa.
Txawm li cas los xij, cov khoom ntim hlau kuj muaj qee qhov tsis zoo, xws li cov tshuaj lom neeg tsis zoo, kev tiv thaiv corrosion, thiab tus nqi siab.