... reseached and developed by the company. The pile holder of this drilling machine applies ship like track,caterpillar type travel ... construction of premoulded pile,concrete influx pile,concre te garlic pile,lime pile,gravel pile,etc.If used for drilling influx pile operation,the ZKL- ... due to the hammering and vibration pile sinking’s press on foundation.Therefore,this drilling machine ,as a kind of ...