| 摘要 |
<p>After the platform units (A,B) have been fitted tightly against one another, the pins (5a,5b,5'a,5'b) are inserted into holes/sockets (4a,4b) joined to a transversal beam (4). The pins are locked in the inserted position in the sockets by through bolts (6a,6b), which also lock side columns (17a,17b) retaining longitudinal side rails.</p> |
