QL DTH isando
Ukubhobolwa kwe-Down hole kusetshenziswa kabanzi embonini yezokwakha, uchungechunge lwe-HFD lwe-QL i-DTH Hammer Adopt insimbi ye-alloy ecolekileyo futhi kufakwa ukwelashwa okuqinisayo ezingxenyeni eziyisipele, okwelula impilo yesando ye-DTH futhi kuphakamisa ukwethembeka. Kungakhathaliseki ukuthi umba imithombo yamanzi, izimbobo eziqhumayo ezinkwalini, izimayini ezingaphezulu, imisebenzi yokuchithwa kwamalahle, ukuhlola uwoyela negesi, noma amaphrojekthi okwakha adinga ukumbiwa okukhulu kwamatshe, i-HFD's QL Series DTH Hammer iphezu komsebenzi.
