material do eixo da bomba centrífuga
Conclusion
3. Reduced Hole Deviation DTH hammers produce straighter holes compared to rotary drilling tools. This precision reduces the need for corrective drilling, saving time and resources.
Производитель dth hammer

Third, the structure of the drilling rig:
The drill tool is composed of drill pipe, ball tooth drill bit and impactor. When drilling, two drill rods are used to drill. The reverse air supply structure is composed of a reverse motor, a reverse reducer, and a reverse air supply inverter. The reverse reducer is
The drill tool is composed of drill pipe, ball tooth drill bit and impactor. When drilling, two drill rods are used to drill. The reverse air supply structure is composed of a reverse motor, a reverse reducer, and a reverse air supply inverter. The reverse reducer is