2-дюймовое скальное бурение
3. Versatility DTH drilling is adaptable to various terrains and rock formations. It excels in hard and abrasive materials, making it a preferred choice for mining operations. Additionally, it can be effectively used in water well drilling, trenchless technology, and foundation drilling in construction projects.
down the hole hammer drilling

The reason:
Inlet valve is not open or has silted
Suction line resistance is too high or blocked
Suction height is too high
Inlet valve is not open or has silted
Suction line resistance is too high or blocked
Suction height is too high