... made in China. We can supply new Full Hydraulic Core Drilling Rig Series made in China. 1 ... 6 6. HYDX-8 Drill rig adapts full hydraulic driving, moving with crawlers itself Drill head is ... speed change with an advanced and simple structure Rotator is fed and driven with a system connecting ... critical auxiliary equipment internationally, diesel engine, hydraulic pump, main valves, motors, crawler reducers and ...