wheketere API o te PDC Bit Drilling Rock Recirculation Whakamuri

Ko te tohanga whakamuri he momo hangarau keri, ka rere te wai paru i roto i te paipa keri mai i raro ki te whenua, ka taea te mimiti i ngā maramara toka nunui mai i te raro o te poka kia kore ai e pakaru tonu, kia tere ake ai te tere o te keri me te tino whai hua.

Te Rawhiti Tawhitihe tohunga ki ngā mata wiri, pērā i te wheketeremata kōne roera, mata kōne roera tricone, mata tricone, kaiwhakatuwhera poka HDD, Ngā tapahi roera turanga mō ngā mahi rerekē.Kei roto i te tonote mara hinu, te hau māori, te tūhuratanga whenua, te keri hohonu, te keri maina, te keri puna wai, te HDD, te hanga, me te turanga.
Hei wheketere mata keri matua i Haina, ko te whakapiki i te roa o te mahi a te mata keri ko tā mātou whāinga. Ka whakapau kaha tonu mātou ki te whakapai ake i ngā mata me ngā reiti urunga teitei. Ko tā mātou whāinga he hoko i te kounga teitei me te utu iti rawa. Mā te kounga me te hangarau o te keri o te Rawhiti Tawhiti koe e āwhina ki te whakatutuki i ngā mea maha atu.