| 摘要 |
<p>Mechanical handling apparatus (1) which has a main channel section or housing (2) of extruded aluminium within which there is a steel U-section roller track (3) housing rollers (4), the whole being closed by a top plate (5) which has holes (6) through which respective rollers (4) protrude when an air bag (7) in the main housing (2) under the U-channel (3) is inflated.</p> |
