... ,high-effective 4,long service life Dry-Mix Gunite Machine for Coal Mine Shotcrete machine is widely used in engineering and ... and high marsh coal mine tunnel shotcrete construction operations. Dry-Mix Gunite Machine for Coal Mine with features: 1,Advantages:This ... is a high-effective shotcrete machine,which is mainly used for dry-mix, damp-mix shotcreting and steel fiber reinforced shotcreting. ...