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 ... , underground engineering and high marsh coal mine tunnel shotcrete construction operations. Dry-Mix Gunite Machine for Coal Mine with features: 1,Advantages:This ...