HQZ500L Pneumatic Drill Rig For Sale | Shandong Hengwang ...
High leg crawler type: high leg is easy for loading and unloading, no need of crane in truck loading. Crawler walking is more adapt to the movement in muddy field. The role of the oil mist: drilling on the rock is dominated by DTH drilling technology, DTH hammer rock drilling operation is high efficiency, lubricated impactor has longer service ...
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