Khoom zoo:
Copal resin yog Hard, soluble nyob rau hauv cawv, thiab kuj siab melting point.
Khoom siv:
1. Siv rau kev tsim cov kua roj vanish thiab cov ntaub ntawv xim
2. Kuj tseem siv tau rau hauv kev tsim cov nplaum nplaum
3. Siv raws li txoj kev kos xim xim
Cov duab khoom:
Cim npe nrov: zoo copal resin, Tuam Tshoj, manufacturers, lwm tus neeg, Hoobkas, pheej yig, luv nqi, hais, luv nqi, dawb qauv
