Electric Rock Drill

chinacoal05 www.chinacoalintl.com m.chinacoalintl.com we provide service of enterprise's customs declaration, inspection. Product Introduction KHYD series mine electric variable-speed drill is suitable for rock drilling rock blasting holes,highway subgrade drilling row of holes urban high days building foundation pit in the soil-nail drill;housing,land-based plant-based reinforcement grouting holes,physical exploration of blast hole and so on.The big rig especially is