in this research, a circular or polygon of the module components in the pin inserted into the pin is installed to the form of the vertical and horizontal connections to be connected, and the display device in a right angle type, ding zi, cross shaped connecting parts. the shape of the assembly in order to allow consumers to hand, is simple and convenient to assemble, and the vertical part and the bottom parts of the module in the steel and plastic parts, frame of circular or polygon groove installed in the convenience store, the the best you can is provided to study the gold bug, the display device is proposed.
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