Hais txog yam khoom no
- Tshuaj Resistant --- Yuav siv tau rau hauv 45% sulfuric acid tov thiab 32% sodium hydroxide tov tsis tu ncua, haum rau tshuaj luam ntawv thiab dyeing industries.
- Ua tau zoo --- Cov khoom tuab thiab ruaj khov.Tiv thaiv heev los ntawm cov khoom.