The results showed that the fiber can be cleaned off the hard work of the tooth using Eฟืon and rotation of the core. It can also trap dust to prevent dust, too.
Results appear as a rounded yak yai can be cleaned by using the teeth of fuean and iron axes of rotation. It is also possible to trap dust, so that no dust to spread spread.
The beads of the difficult no matter which can be cleaned by using the principles of mind) to aberrate teeth and a roll of steel shaft is also able to capture dust to dust dispersal.