Hydraulic breaker to reduce the size of the stones with large overdoses. Reduces Secondary blasting Reduce time to penetrate and increase working hours do not need to escape the bomb sub.
Hydraulic breaker to reduce the size of the stones that are more abundant. Reduce the Secondary blasting reduce drilling time and increase working hours without sub-sub bombs away.
Hydraulic breaker used to reduce the size of stone size, overdose, reduce do Secondary blasting.Reduce the time and increase the drilling sub working time to escape the bomb digest.