Want no shape, the joining together of rotation Angle is the first selected object must be horizontal, so shape combination when we first select leaves and selected other shapes.
想得到无旋转角度的拼接形状，则第一个选中的对象必需是水平的，因此形状组合时我们才要先选中叶子再选中其它形状。
Light-duty racks made of angle iron are beautifully designed and of good performance. Installed in the joining and inserting way, therefore easy to be disassembled.
万能角钢轻型货架外形美观、性能优越，按连接和插接方式组装，拆卸方便。
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