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400m Deep Hole Truck Mounted Hydraulic DTH Water Well Drill Machine Rotary Drilling Rig Borehole Drilling Rig Equipment, Find Details and Price about Water Well Drilling Rig Water Borehole Drilling Machine from 400m Deep Hole Truck Mounted Hydraulic DTH Water Well Drill Machine Rotary Drilling Rig Borehole Drilling Rig Equipment - Beijing Jincheng Mining Technology Co., Ltd.