1. Thaum xaiv cov kav dej txhawb nqa thiab lub hanger, qhov kev txhawb nqa thiab lub hanger tsim nyog yuav tsum tau xaiv raws li qhov loj me thiab kev taw qhia ntawm qhov chaw txhawb nqa, qhov kev hloov chaw ntawm cov kav dej, seb qhov kub ua haujlwm puas raug rwb thaiv tsev thiab txias, thiab cov khoom siv ntawm cov kav dej:

2. Thaum tsim cov kav dej txhawb nqa thiab cov khoom dai, cov clamps kav dej txheem, cov khoom txhawb nqa kav dej thiab cov khoom dai kav dej yuav tsum tau siv ntau li ntau tau;

3. Cov kav dej txuas thiab cov yeeb nkab txuas txuag tau hlau dua li cov kav dej txuas thiab cov yeeb nkab txuas hom clamp, thiab yooj yim rau kev tsim khoom thiab kev tsim kho. Yog li ntawd, tshwj tsis yog cov xwm txheej hauv qab no, cov kav dej txuas thiab cov yeeb nkab txuas yuav tsum tau siv ntau li ntau tau;

1) Cov kav dej ua los ntawm cov hlau carbon nrog qhov kub nruab nrab hauv cov kav dej sib npaug lossis ntau dua 400 degrees;

2) cov kav dej kub qis;

3) Cov kav hlau sib xyaw;

4) Cov kav dej uas yuav tsum tau rhuav tshem thiab kho ntau zaus thaum lub sijhawm tsim khoom;