| 摘要 |
<p>Outer casing is for a stop post and a casing of metal or plastic (1) is lowered over a stop body (4) of steel, steel concrete, plastic or wood anchored in the ground (6). The casing is lowered to below ground level over a stop post and is anchored so as not to be visible from the exterior. Through easy handling, it can be released from the stop post and raised. Using a refined metal casing over a quality steel post, protection is provided against contact corrosion using plastic running rails. The casing is upwardly closed or can be open. It is exchangeable against one which has retainers for traffic flags.</p> |
