Lub tshuab ntim shrink muaj ntau yam zoo rau lub ntim cov khoom noj khoom haus, hluav taws xob cov khoom, cov khoom ua si, ntawv sau thiab cov zoo li.
Ua ntej, nws txoj kev sealing zoo zoo rau cov khoom kom tiv thaiv kev qias neeg thiab sab nraud, thiab muaj kev txuag zoo rau cov zaub mov ntim;
Qhov thib ob, nws ua kom cov khoom ntim khoom tiv thaiv kom zoo dua tiv thaiv sab nrauv, ua si lub luag haujlwm, thiab muaj kev tiv thaiv zoo;
Thib peb, rau cov khoom ntim ntawm cov khoom khib nyiab, nws tuaj yeem tiv thaiv kom tsis txhob muaj cov khib nyiab khib nyiab tom qab tawg lawm;
Plaub, tsim rau lub pob fastening ntawm ntau yam khoom.
