I-CSJ Crown Drill (uhlobo lwevenkile yangaphambili)

Inkcazo ngokubanzi

Iqela lezixhobo lenziwe ngentsimbi yesixhobo esikumgangatho ophezulu olwenziweyo ngonyango olukhethekileyo lobushushu, kunye nomphezulu ophathwayo ngokubethelwa, nto leyo enokudinwa kunye nokudinwa. I-HB yohlobo lwe-HB