| 摘要 |
A tubular member, which is made of steel and which is useful as an upright, structural member in a pole, pylon, or tower, is filled at least partially with a foamed material protecting said member against internal corrosion and against pest infiltration. The tubular member comprises plural sections, which have end flanges and which are bolted together at the flanges, and comprises gaskets to prevent the foamed material from being extruded between the flanges.
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