| 摘要 |
A safety bar which provides protection, the bar having a generally trapezoidal, open cross-sectional shape. The cross-sectional configuration of the bar includes a central flange which is embraced by two webs each of which has a side-flange which extends outwardly on a respective side of the bar. The bar has an intermediate section between a first section thereof and a mounting section thereof at one of its ends. In the intermediate section, the central flange has generally a decreasing width and the webs a generally decreasing height towards the bar end.
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