China Power Equipments Petrol Gasoline Rock Drill Machine Specifications 1. Very efficient. 2. Less of the -easy-to -damage-part. 3. Very easy to control. 4. CE approved. 5. Only 27 kg The Internal Combustion Rock Drill Type YN27C is a very efficient machine with the haracters that the structure is very compact, Less of the-easy-to-damage-parts, and very easy to control. It can adapt to these...