utilisez un marteau rotatif pour toucher la barre de terre.
Advancements in technology have led to improved performance and safety in downhole drilling operations. For instance, the development of advanced materials, like polycrystalline diamond compact (PDC) bits, has increased the durability and efficiency of drill bits, allowing them to cut through tougher formations at higher speeds.
1. Smooth Jaw Plates These plates are flat and uniformly shaped, providing consistent crushing performance for softer materials. They are ideal for producing a finer product and are commonly used in applications where the end product requires a smooth finish.
Смотреть jaw plate crusher

Advantages of DTH Drilling Rigs
When the crawler pile driver is drilling, the current of the pile driver's ammeter shall not exceed 100A. If the ammeter current exceeds 100A, the drill pipe should stop and descend slowly, and the rotor always keeps turning. If the current drops below 100 amps and is stable, the drill pipe can continue to decline slowly.
The reason:
The suction pipe is not filled with water
Blocked suction line or inadequate valve opening
The inlet pipe of the pump, the meter or the stuffing box are serious
The suction pipe is not filled with water
Blocked suction line or inadequate valve opening
The inlet pipe of the pump, the meter or the stuffing box are serious