Concrete Spraying Machine is a set of equipment for walking, pumping and jetting. It can spray ready-mixed concrete, steel-fiber or polymer fiber ready-mixed concrete with stable performance, simple operation, low rebound rate and high construction quality The characteristics of hydrostatic transmission, four-wheel drive, four-wheel steering rigid chassis, excellent power performance, good climbing performance, especially for the rugged road surface. Mainly used for railways, road tunnels, slopes, water conservancy and hydropower tunnels and culverts and all kinds of underground military, civil construction and other underground engineering.