Lub luag haujlwm ntawm cov iav iav ntim kom zoo nkauj yog feem ntau cuam tshuam hauv cov hauv qab no:
Tiv thaiv cov khoom xyaw: iav fwj muaj cov khoom siv hluav taws xob zoo, thiab ua kom tiv thaiv cov khoom siv hauv lub raj mis, thiab ua kom muaj kev ruaj ntseg ntawm cov tshuaj pleev ib ce ntawm cov tshuaj pleev ib ce.
Txhim kho cov khoom lag luam khoom: iav fwj muaj siab transparency, uas tuaj yeem qhia meej meej meej cov xim pleev, thiab txhim kho kev pom kev zoo nkauj thiab txhim kho cov khoom lag luam zoo nkauj. Tshwj xeeb tshaj yog rau cov tshuaj pleev roj kom cov roj, cov fwj iav yuav tsis pom zoo siv roj roj, ua kom cov tshuaj pleev ib ce ntshiab thiab muaj kev nyab xeeb.
Kev tiv thaiv ib puag ncig thiab cov fiber Tsis tas li ntawd, iav yog cov txhuas dawb thiab tsis muaj mob, muaj cov zoo corrosion tsis kam thiab acid tiv thaiv, thiab muaj kev ntim tshwj xeeb rau cov tshuaj pleev ib ce kev lag luam.
Ntau yam siv: iav fwj yog haum rau ntau hom tshuaj pleev ib ce, pleev roj, cov ntsia hlau, uas tuaj yeem raug ua kom tau raws li kev xav tau ntim ntau.
Qhov ntsuas nruj nruj: Cov khoom siv kom zoo nkauj, kom ntseeg tau tias cov khoom siv hluav taws xob nruj, ua kom pom cov khoom siv hluav taws xob, kom ntseeg tau tias cov khoom siv hluav taws xob rau lub cev, kom ntseeg tau tias cov khoom siv hluav taws xob kev ntxhov siab, kom ntseeg tau tias muaj kev pheej hmoo ua lag luam.