Drilling Rigs, Core Bits, Water Well Drilling Rigs manufacturer / supplier in China, offering 600m 6X6 Sinotruck Truck Mounted Full Hydraulic DTH Borehole Water Well Drilling Rig, Crawler Full Hydraulic Rotary Head Geotechnical Testing Bore Core Drilling Equipment, Crawler Full Hydraulic Geotechnical Exploration/Soil Testing Core Drilling Rig with Hydraulic Spt Automatic Hammer (MLY-200XL) and so on.