Khyd Electric Rock Drilling Portable Electric Handheld Rock Drill Zhengzhou Zomagtc Company Ltd. Base Info Description ItemRock diametermmDiameter of coal seammm Depth of rockm Depth of coal seamm Speedr/minpowerkwweightkgKHYD404245-60520-602814240KHYD754245-801030-801420375KHYD14042-8080-1002030-8014405.5140KHYD15042-8080-1202540-10014407.5150 Pre：Tractor Mounted Water Well Borehole Drilling Machine Price Next：Mobile Water Drilling Rig
