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HFD Drills: ʻO ke koho maikaʻi loa no ka ʻimi ʻāina

Hoʻolaʻa ʻia ʻo HFD Mining Company i ka hoʻomohala ʻana i nā ʻāpana drill kiʻekiʻe e kū ana i nā koi o ka mākeke, ʻoi aku hoʻi ma nā wahi o ka carbide a me nā drill diamond. Hoʻopili ka hui i kahi ʻat...