| 摘要 |
A construction beam mainly made of extruded elements is described herein. The construction beam includes identical top and bottom rails each provided with longitudinal guiding portion, a plurality of brace elements and a plurality of spacer elements mounted between the top and bottom rails. More specifically, each brace element is provided with connecting portions connectable to the longitudinal guiding portions and, similarly, each spacer element is provided with connecting portions connectable to the longitudinal guiding portions.
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