... underground engineering, civil engineering and slope stabilization,etc.2. Atificial soil seeding for no soil surface, such as rock, sand, and ... inner liner.Wet Mix Shotcrete Machine Features:1.Advantages: JEAO-2 is a new & high-efficient concrete-spraying machine, mainly ... -strength of concrete layer, saving material and protecting environment.2. This machine is suitable either for manual spraying or by ...