Nyob hauv Lub Tsev Thawv Tsev Yuav Tsum Tau Saib Xyuas Qhov Kev Nyab Xeeb Kev Nyab Xeeb

1. Thov tsis txhob vuam ze ntawm phab ntsa;
2. Lub caij ntuj no cua sov qhov cub yuav tsum tau nruab nrog cov khoom siv tiv thaiv hluav taws;
3. Rau cov tsev ntim khoom uas xav tau kev kho dej tsis zoo, nws yog nruj me ntsis txwv tsis pub siv cov tshuaj tsuag teeb rau ntawm cov khoom siv hauv tsev;
4. Thaum tso cov xaim hluav taws xob sab hauv tsev, cov kav hlau hlau yuav tsum tau siv, thiab cov kav dej txhim khu kev qha lossis cov khoom siv refractory yuav tsum tau siv.
Tsis tas li ntawd, lub tes tsho yuav tsum tau ntxiv rau kev tiv thaiv thaum hla ntawm phab ntsa;