ʻO CFMG kahi ʻoihana hana e hoʻopili nei i ka hoʻolālā, noiʻi, hana hou a me nā kūʻai aku. He loea ia i ka hana ʻana a me ke kūʻai aku ʻana i nā hāpai hydraulic, nā ea hāpai heʻe, nā paepae hāpai i luna o aluminika, ke awa pae, nā hāpai hāpai ukana a me nā pono hana ʻē aʻe. Loaʻa i nā huahana nā huahana 8 a ʻoi aku ma mua o 60 mau ʻano, i hoʻohana ākea ʻia i nā ʻoihana like ʻole.