Core Drilling Rig, Diamond Core Bit, PDC Bit manufacturer / supplier in China, offering Hydraulic Dual Diesel Crawler Drilling Rig 22HP 150m 200m Water Well Drilling Rig, T2 Impregnated Core Drill Bit Set Include Drill Bit, Catcher, Boxer, Reamer Shell, Electroplated Diamond Reamer/Reaming Shell for Hydraulic & Wireline Core Drilling - High Precision Impregnated Surface Set, Geological Exploration Tools and so on.