... after sales service; PZ-5 Shotcrete Machine:PZ-5 Shotcrete Machine, as the solution for damp-mix shotcreting, is widely used for railway and highway, subterranean ... channels, shear Walls, retaining Walls, bridge retrofits, architectural concrete, mining, tunnel, culvert, subway, hydropower engineering(such as tunnels, dams and pools ... ) High Quality and competitive costs PZ-5 Dry-Mix shotcrete machine