Ufa wowuma, womwe ndi wokutidwa ndi al2o3 & siio2 ndi wapadera wapadera
kuthandizidwa kuti akhale ndi zinthu zabwino zonse zamisala komanso zida zabwino kwambiri. a
Zogulitsa zimawonetsa kuyera kwabwino, mphamvu yayikulu kwambiri, mphamvu yayikulu, mphamvu yamphamvu,
Kuzindikira bwino, kulumikizana kwambiri kwa Chalk, kuyamwa kochepa kwa mafuta, kunyowa konyowa ndi kunyowa
zosavuta kubalalika m'njira zosiyanasiyana.