I would have to say that is an 'l' -shaped bracket.

我不得不说，这是一个“L”状的支架。

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Custom L-shaped lounge benches bracket this space and can be rolled away to allow for other USES and activities.

定制的L型长椅各自摆放，可根据需要排列以供其他用途和活动而用。

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The cardinal shelf is composed of a backplate for dorsal palm and a bracket for wrist with a U-shaped rack fixed in front of it.

由掌背护板和腕托架构成主架，主架的前侧固定安装一U形前支架；

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