barras de perforación de 18 pulgadas
- Durability Look for pumps made of corrosion-resistant materials, especially if they will be exposed to harsh environments which can cause damage over time.
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.