| 摘要 |
<p>A concreting jet apparatus comprising a concrete mix container (1) having a concrete mix-propelling flight (2) mounted below the container, and a jet nozzle assembly (3) adapted to the end section of the flight assembly, having a compressed-air jet nozzle (4) mounted inside the assembly. The jet nozzle assembly (3) is mounted perpendicular to the axis of the flight (2).</p> |
