| 摘要 |
This invention relates generally to a lay-in wireway comprising a plurality of hollow rectangular channel sections secured in end-to-end relation and provided with hinged covers which overlap similarly hinged bridging plates disposed therebetween. The bridging plates are provided with resilient gaskets which sealingly engage the open sides of the channel sections and the covers are similarly provided with gaskets which sealingly engage the tops of the bridging plates.
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