Manaʻo hana: Ua hoʻolālā ʻia nā manhole kila kila e hāʻawi maʻalahi i ke komo ʻana i nā pahu mālama i lalo o ka honua, nā paipu, nā ʻōpala, a me nā hale paʻa ʻē aʻe.Hana ʻia lākou me nā mea kila kila e hiki ke kū i nā kūlana kūlohelohe koʻikoʻi, e like me ka corrosion, abrasion, a me ka hig ...
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