fournisseurs de compresseurs d'air diesel portables
First, the classification of drilling RIGS:
Submarine Hammer Drilling An Insight into Techniques and Applications
2, according to the aperture is not the same, the drill can be divided into light drilling rig, medium drilling rig, heavy drilling rig.
2, according to the aperture is not the same, the drill can be divided into light drilling rig, medium drilling rig, heavy drilling rig.