Zuanshan Mining Machinery Co., Ltd located in Liaocheng, Shandong Province, we have specilized in research, development and production of air compressor, drilling rigs & down the hole (DTH) drilling tools for more than 20 years. We are one of the very few manufacturers & suppliers in China, which could offer the whole drilling methods & plans, with our advanced technology, excellent equipment, strict testing and perfect service network. Our leading products include diesel driven portable screw air compressor, motor driven movable screw air compressor, electric stationary screw air compressor, water cooling air compressor, explosive-proof screw air compressor, piston compressors, air dryers & air receivers, tophammer hydraulic drill rig, crawler down the hole drilling rigs, rock drills, DTH Bits, DTH Hammer, DTH Drill Pipe, Odex Drilling Tools, RC DTH Drill Tools, DTH Drill Accessories etc., covering 15 categories and above 200 types. Our band “Zuanshan” has earned a good image of global market, goods are exported to over 50 countries in large quantity regularly, and quality has been proved great. Moreover, our group company has passed the evaluation of ISO9001: 2008 Accreditation. Zuanshan Mining Machinery Co., Ltd will always focus on the strategic conception of “Survival by quality & service, Development by credit’’, to provide users with the whole premium quality drilling solutions.