Cable tray shield is a kind of cable tray used for power and communication cable lines. Through flat glass, the front cover of cable tray and the surface on both sides of trouser legs are of concave convex surface shape, and the top concave convex of cable tray is set in a row. The two ends of each concave convex (11) and (12) unit are bent to fold (2) in the same direction, because the difference between the concave convex (11) (12) is less than 8mm.

　　本實用新型的電纜橋架覆蓋層強度和結構強度高，由于覆蓋層的結構具有凹凸形狀圖形不同，因此，覆蓋層的剛性程度有所提高。由于鋼的強度增加，較薄的材料可用于制造。如果使用相同的厚度，強度將增加一倍以上。

　　The covering layer of the cable bridge of the utility model has high strength and structural strength. Because the structure of the covering layer has different concave convex shapes, the rigidity degree of the covering layer is improved. Because of the increased strength of steel, thinner materials can be used for manufacturing. If the same thickness is used, the strength will more than double.

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