TDS tau muabDTH Drilling cov cuab yeejrau mining tej yaam num.
DTH Rauj 3 "/ 4" / 5 "/ 6" / 8 "/ 10" / 12 ", Huab cua siab, cua siab.
DTH Button Bits DHD / QL / Lub Hom Phiaj / SD / NUMA / BR series.
DTH Laum yeeb nkab 76mm / 89mm / 102mm / 114mm / 127mm / 140mm.
Nta
- Lub neej ntev ntev DTH rauj
- Hnav tiv thaiv laum khoom
-Qhov zoo tshaj plaws laum yeeb nkab
-Kev ruaj ntseg
-Qhov tseeb
