| 摘要 |
<p>The lance (1) can be attached with an adapter (3) to a pistol - controlled device spraying sand or preferably ice pellets onto a surface for a thorough cleaning. The front of the pipe (2) is connected to a flexible tube (4) fitted with a nozzle (61) for the release of the blasting material. A nozzle guiding arm (10) with a straight (11) and a bent segment (12) is positioned parallel along each side of the tube (4) held by a ring (13) and a sliding sleeve (8). When the sleeve (8) is moved back the front of the tube (4) is pulled into a curved shape for use in a narrow space.</p> |
