| 摘要 |
<p>A reinforcing core (3) is placed inside a thin-walled hollow tubular member (1) made of a metal, plastic, or glass, and a curable substance (2), such as cement mortar, resin mortar, plaster, or an expandable material, is packed in space within the tubular member (1) and is then hardened, making it possible to obtain a tubular structure with a greatly improved flexural strength. It is possible to use this tubular structure as a boundary support for a fence.</p> |
