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Maybe you've come across such a situation, you want to enter or go out of a room,
it must through a transparent glass door, but you do not know should push the door or
sliding door, so you have trouble ...
But now, the emergence of P-P Space will no longer make you the trouble, he's a
combination of hand by a bristling lever and a sideways putting sideways
representatives pushed open the door, bristling representatives "pull gate "
Wuhan University of Technology
Fang Jiangcheng Chang Hao Han Bing Gu Jinhao