Kev tua hluav taws tua hluav taws yog kev tua hluav taws kev ntsig txog kev soj ntsuam, rov qab thiab hloov cov khoom tsim nyog ntawm lub tua hluav taws kom paub siv lub tshuab tua hluav taws zoo thiab kev tua hluav taws zoo. Kev tua hluav taws tua hluav taws feem ntau ua txhua xyoo.
 Tshem tawm tua hluav taws |  tua hluav taws tua hluav taws |
Txheej txheem tua hluav taws tua hluav taws:
1. Tshem tawm hauv lub tshuab tua hluav taws: tso lub siab tso pov tseg rau lub tua hluav taws thiab tshawb xyuas lub taub hau, taub, lub plab roj hmab, lub siab tawm thiab kev tawm ntawm lub qhov dej tawm. Thiab ho hloov qhov khoom puas.
2. Kev ntsuas dej ntawm lub tua hluav taws lub tog raj kheej: Tuaj ntsuas seb qhov hluav taws kub kheej lub plhaub yog deformed nyob rau hauv siab thiab seb lub tua hluav taws lub plhaub yog rusted thiab corroded.
3. Qhuav lub tua hluav taws lub tog raj kheej;
4. Muab tus neeg sawv cev rov qab rau lub tua hluav taws thiab hloov cov neeg tua hluav taws qub.
5. Ntsaws roj rau nitrogen.
6. Txuag kev kuaj xyuas thiab kev ua pa nruj xyuas tom qab kaw lub taub hau.
Tu sab nrig ntawm lub tua hluav taws lub tog raj kheej.
