My co***ny was founded in 2010, specializing in the production of coal mine drilling rig R & D, with a number of domestic and foreign coal mining group in a long-term cooperative relations, and was included in quality products for the record.Our co***ny mainly engaged in coal mine with frame column type hydraulic rotary drilling rig (water exploration gas, roof drilling, coal seam affusion), frame column type gas dynamic rotary drill, hand drill, anchor drill, drill, drill pipe....
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