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

2. Thaum tsim cov yeeb nkab txhawb nqa thiab hangers, cov yeeb nkab txheem clamps, cov yeeb nkab txhawb nqa thiab cov yeeb nkab hangers yuav tsum tau siv ntau li ntau tau;

3. Welded yeeb nkab txhawb nqa thiab cov yeeb nkab hangers txuag steel tshaj clamp-hom yeeb nkab txhawb nqa thiab cov yeeb nkab hangers, thiab yooj yim rau kev tsim khoom thiab kev tsim kho. Yog li ntawd, tshwj tsis yog rau cov xwm txheej hauv qab no, welded yeeb nkab clamps thiab cov yeeb nkab hangers yuav tsum tau siv ntau li ntau tau;

1) Cov kav dej ua los ntawm carbon steel nrog qhov nruab nrab kub hauv cov yeeb nkab sib npaug los yog siab dua 400 degrees;

2) Cov kav dej kub tsawg;

3) Alloy steel kav;

4) Cov kav dej uas yuav tsum tau muab tshem tawm thiab kho ntau zaus thaum tsim khoom;