Ophwanya madera okhazikika (McBS) opangidwa ndi fakitale ya santuec amatha kuteteza madera kuchokera kuwonongeka chifukwa chaposachedwa. Ophwanya madera okhazikika ndi zinthu zofunika kwambiri zamagetsi zamagetsi ndipo zimagwiritsidwa ntchito kwambiri pakugwiritsa ntchito malo ogona, zamagetsi komanso mafakitale.
1. Kutetezedwa Kwambiri
2. Kutetezedwa kwakanthawi
3. Kugwira Ntchito
4. Chotsani
5.
6. Wophwanya dera