Ukwakheka kwe-Application Rock: Izingcezu zokubhola i-Oilfield roller cone zisetshenziswa kakhulu ezinhlotsheni ezahlukahlukene zokwakheka kwamadwala, okuhlanganisa i-sandstone, i-shale, i-mudstone, namadwala aqinile.Ukukhethwa kohlobo lwe-roller cone drill bit kuncike ebukhuni kanye nezakhiwo zokwakheka kwamadwala.Izinjongo zokumba: Izinjongo zokumba ziphinde zibe nomthelela ekukhethweni kwamabhithi okubhola ama-roller cone.Isibonelo, imithombo kawoyela yokumba kanye nemithombo yegesi yemvelo ingadinga izinhlobo ezahlukene zezingcezu zokumba ukuze kuhlaliswe...