pompage de boue
A red light should be installed on the top of the column of the crawler pile driver (hereinafter referred to as the pile driver) (when it is working at night, it must be turned on) to warn the surrounding crowd, and it is recommended that the user install it according to the actual situation.
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.