Dej kho qhov dej yog dab tsi?

Dej kho system nrog rau:

1. Multi-media lim

2. Activated cov lim

3. Dej muag khoom

4. PP Ultrafilter

5. RO zog

6. EDIsystem

7. Ultraviolet sterilization system

8. Ozone sterilization system

9. Tswj hluav taws xob