Te keri whenua
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Mahinga keri keri whenua matua
Te whakauru i te HZ Core Drill Rig - te otinga tino pai mo nga kaupapa keri i roto i te Tirohanga Tirohanga Matawhenua, Te Tirohanga Matawhenua, Te Tirohanga Rori me te Hangahanga, me te Blast and Breakhole. I hoahoatia te rig drill HZ ki te whakarato i te kaha keri tere, he mea tino pai mo nga tohunga e rapu ana ki te whakangawari i a raatau mahi keri.
