- Zida zobwezeretsa moto, chitsimikizo chachitetezo.
- Chigoba chachitsulo chosapanga dzimbiri, chabwino, anti-corrosion komanso chopanda fumbi.
- Zimaphatikizapo batani la PC, lotsika mtengo, lopanda madzi.
- Kuchita bwino, koyenera kugula, kolimba komanso kodalirika.
-Zogulitsa zitha kugwiritsidwa ntchito pakuwongolera mwayi, zoyendera, zida zachitetezo, zida zapakhomo, zida zamankhwala, zimbudzi, ndi zina.