Drilling Rig, Drilling Rig Machine, Drill Rod manufacturer / supplier in China, offering C-1000 Full Hydraulic Surface Mine Investigation Drilling Machine for Geological Exploration, T2-76 Series Diamond Core Bit for Soft Hard Rock/T Series Core Drill Bit for Mineral Exploration, T2-76/86/101 Impregnated Diamond Core Drill Bit /T2 Series Geological Core Drill Bit High Penetration Rate and so on.