Hardness: Ntug A 65 - Ntug D73
Kev ua haujlwm: Txhaj tshuaj molding.
Cov yam ntxwv: Cov khoom siv lub cev zoo heev, Kev ua haujlwm tsis zoo, Kev ua haujlwm yooj yim, Fastde-molding txias / kub tsis kam, Zoo Transparency