1. Ma cores ambiri, kapangidwe kouma kotseka madzi, mafuta osadzaza, oyera komanso ofulumira panthawi yomanga, komanso osakhudza chilengedwe chozungulira.
2. Cholimbitsa chapakati cha ndodo yapulasitiki yolimbikitsidwa ndi ulusi wagalasi (FRP).
3. Chida choteteza chachitsulo chokulungidwa ndi filimu yozungulira mbali ziwiri chomwe chimakutidwa ndi corrugated steel tepi chingathandize kwambiri kukana kuthamanga kwa chingwe cha kuwala.