| 摘要 |
<p>The present invention relates to a support comprising: a fixating part fixated to a bottom of an upper support to be seated on a top of the upper support; and supporting parts provided on the bottom of the fixating part at regular intervals to be accepted inside a lower support. As such, the upper support has a significantly improved durability. In addition to this, the present invention facilitates an adjustment of the centers of the upper and lower supports in a vertical line.</p> |
