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180m/220m/260m Drilling Depth Crawler Pneumatic Borehole Core Water Well Drill/Drilling Rig Machine for Hard Rock/Irrigation Well Drilling, Find Details and Price about Water Well Drilling Rig Water Well Drilling Machine from 180m/220m/260m Drilling Depth Crawler Pneumatic Borehole Core Water Well Drill/Drilling Rig Machine for Hard Rock/Irrigation Well Drilling - HENAN RANCHENG MACHINERY CO., LTD.