Cov khoom
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Huab cua siab DTH rauj
DTH rauj yog cov haujlwm ua haujlwm ntawm DTH laum rigs, uas tsav piston tawm mus thiab rov qab los cuam tshuam DTH cov khoom rau tawg pob zeb los ntawm huab cua compressed.
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3-4 nti siab cua siab DTH ntsis
Down-the-hole laum khoom, tseem hu uadth ualaum khoom, txuas nrog rau rauj los ntawm kev xyaum me ntsis lub cev spline, uas coj thiab xa cov kev sib hloov rau rauj.
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5-6 nti siab cua siab DTH ntsis
DTH laum cov khoom siv dav siv hauv cov mining hauv av, quarries, hydraulic thiab Hydro-Power Engineering, dej zoo drilling, Mineral tshawb nrhiav, anchoring qhov drilling, geothermal engineering,
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8-10 nti siab cua siab DTH ntsis
CovKaishan dth drilling ntsisyog siv rau hauv kev tshawb nrhiav geological, thee mine, waterconservancy thiab hydropower, txoj kev loj, railway, choj, kev tsim kho thiab kev tsim kho, thiab lwm yam.
Nta ntawm Cov Cua Kub Siab DTH Drill Bits
