Water Well Drilling rig 1,Drilling machine with two patents 2,Hydraulic chuck 3 Drilling for water well 4 well Drilling rig Water Well Drilling rig (HGY-200): Brief introduction: 1.32 years professional manufacture2 ... tunnel, well, industrial and civil construction, geological exploring, large diameter boring pile and small diameter diamond core deep hole drilling, etc. Water Well Drilling rig(HGY- ...