pūtahi pūhā kōhatu wai ebay
Nā runga i ngā pūtake wai e tuku nei i te eBay, he kohinga nui o ngā rautaki whakamahi hei whakawehenga i te whenua mō ngā kaihanga hoki me ngā tangata e mahi ana i tēnā i tēnā. Kua hangaia ēnei rautaki ki te whakapiki i ngā momo whenua iti noa iho ki ngā whenua korihi, ka mutu nei ko te take matua hei whakangungu i te hanga pūtake wai. Ko te aha kē o te whare-kaiwhirinaki he rangi nui o ngā rautaki, inaianei ko ngā rautaki tricone roller, ko ngā rautaki drag, me ngā rautaki PDC (Polycrystalline Diamond Compact), e hanga ana hei whakamahere mō ngā momo whenua me ngā uru whenua. He whakatūpūtanga nui o ēnei rautaki, e whakauru ana i te āporo toki me ngā whakauru karbaidi hei whakatika i te roa me te hiranga o te whakamutunga. Ka kitea e ngā whakamahi ngā rautaki hou me ngā rautaki whakahoutanga, whakaora ai te hunga whakamahi me ngā huringa moni. Kei roto i ngā tuhinga nui atu he whakamārama nui mō te diameitā o te rautaki, mō te momo putiputi, me ngā momo whenua whakarato, kia taea e ngā kaihoko te whakatau pai. Ko te whare-kaiwhirinaki anō e tuku nei i ngā rautaki taketake hei whakamahere mō ngā momo whenua motuhake, ka whakaaeke ai ki te rautaki tōna tūranga.
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