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The first swing door ever used in China at the Astor Hotel in Tianjin. [Photo/chinadaily.com.cn]
![The first swing door ever used in China at the Astor Hotel in Tianjin. [Photo/chinadaily.com.cn]](http://images.china.cn/attachement/jpg/site1007/20110706/001fd04cf34a0f7e0fea44.jpg "The first swing door ever used in China at the Astor Hotel in Tianjin. [Photo/chinadaily.com.cn]")