... high quiality2. low dust,protect environment3. easy to operateShotcrete machine:Shotcrete machine, cement throwing jet ismainly used in construction for tunnel ... , swimming pool, wall etc.this shotcrete machine is wisely used in mines, tunnels, culcerts, subway, ... --dry type spray Model DYPG-5Capacity 5 m3/h Air consumption 7-8 m3/h Conveying distance 200m-40m⊥Material ration 1 ...