ʻO WY30 nā mea ʻeli i koho ʻia me nā kumu kūʻai hiki ke hana maikaʻi

Nā ʻōiwi

Loaʻa i nā Excavators nā mana hana kūpono a hiki ke hoʻopau i ka nui o ka hana honua a me ka hana ʻeli pōhaku i loko o kahi manawa pōkole, e hoʻomaikaʻi nui ana i ke kūkulu ʻana. ʻO nā hiʻohiʻona excavator like ʻole a me nā hoʻonohonoho kūpono no nā hiʻohiʻona kūkulu hale a me nā pono, e hōʻoia ana i ka hana maikaʻi loa ma lalo o nā kūlana hana.