Dry-Mix Gunite Machine for Coal Mine 1,Explosion-proofing motor 2,simple structured 3,high-effective 4,long service life Dry-Mix Gunite Machine for Coal Mine Shotcrete machine is widely used in engineering and construction, mining, tunnel, culvert, subway, hydropower engineering, underground engineering and high marsh coal mine tunnel shotcrete construction operations. Dry-Mix Gunite Machine for ...