2014年(381)
分类: 信息化
2014-06-10 18:28:39
A space to accommodate the with cushion and back plate and implementation, and can be spread to the general chair and the cushion is used as a cushion and the back board, this will help to improve students learning efficiency and their health.In addition, when used in sports venues or outdoor bags to watch the game or the rest of the present invention, the can be used to collect and discard all kinds of garbage, this will also help to environmental protection.
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