Gada
Lalacewar lalacewa na iya haifar da babban farashi a cikin gada, saboda haka yanayin da ke kiyaye iyakar 50% RH a kusa yana da mahimmanci don hana lalata ginin ƙarfe a cikin aikin ginin gada.
Samfura masu alaƙa:(1).(2)
Misali abokin ciniki:
New Jinggangshan Bridge
