Material: bir kaarboon & bir aan daahin.
Balaadhinta saxda ah iyo fur-ku-dhiska si gaar ah loo nashqadeeyay waxay hubisaa balaadhinta barroosinka.
Qiimayaasha tijaabada ee hoos ku taxan ayaa la helay iyadoo la isticmaalayo 200-250kgs/cmconcrete(iskudar la'aan).
Culayska shaqada ee badbaadada leh waa inuusan ka badnaan 25% qiimaha la sheegay.