Cov kaus poom uas tsis muaj poom plag yog hauv cov lag luam. Cov ntsiab lus uas peb steel hlau tank manufacturers sib faib nrog koj hnub no muaj feem xyuam rau cov ncauj lus qhia ntxaws qhia txog cov kav hlau tsis muaj steel hlau ua.
Thaum cov kaus poom hlau uas tsis muaj piam thaj, peb yuav tsum ua kom tsim nyog. Peb yuav tsum tau coj tus txheej txheem coj los siv thiab cov hau kev rau cov kav hlau tsis siv cov cav ntoo thaum lub sijhawm siv. Cov hlau tsis muaj roj cav tsim ntawm no cov hlau tsis muaj steel hlau ntawm no kuj xav kom koj them sai sai rau cov kev tawm tsam sib txawv thiab kev sib thooj. Feem ntau, peb tuaj yeem tsis pom qhov tseeb qhov teeb meem no, thiab cov ntsiab lus ntawm cov hlau tsis muaj hlau tsis tuaj yeem tsis lees paub, vim tias thaum koj tsis pom qhov tseeb qhov teeb meem, qhov kev kawm tiav yuav raug cuam tshuam. Tib lub sijhawm, peb yuav tsum ua ib txoj haujlwm zoo nyob rau hauv kev ntsuam xyuas thiab kev txheeb xyuas kom paub tseeb cov khoom tiav tiav.
