Nā ʻokoʻa ma waena o nā mea hoʻopaʻa sima a me nā pahu alahaka
ʻO ka hana maikaʻi loa o ka wili ʻana a me ka Milling: Inā ʻo ke kūlana e hana i ka hana wili a i ʻole ka hana wili (junk mill), penei ka hana i ʻōlelo ʻia: E hoʻohana i kahi tricone Bit (IADC Bit Codes 2-1, 2-2, 2-3, 2- 4, a me 3-1) - hoʻokumu paʻakikī. ʻAʻole ʻo PDC Bit ...
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