Khoom nta:
1. Khoom siv: los ntawm tus neeg sawv cev tseem ceeb thiab tus neeg sawv cev curing piv.
2. Cov tsos: cov kua mis dawb dawb.
3. Haum rau phau ntawv daub, muaj zog stickability, superior kev kawm, yooj yim siv.
4. Daim ntawv thov: Siv dav hauv cov qhov rooj ntoo thiab qhov rais, cov rooj tog ntoo, cov khoom siv ntoo, cov khoom siv ntoo, cov rooj sib xyaw ua ke, cov khoom siv ntoo thiab lwm yam.