1.The frame of screen is made of aluminium-alloy shape,its structure is reasonable .

2.The screen is composed of import withpolymethyl methacrylate,it is beautiful and novel

3.The frame of the viewer's body is made of special aluminium-alloy shape in domestic .It is shaped whoely,never distorted. It is stiffer safe,and durable

4.With built-in advanced clipping set,films are easy to be clipped or taken out and clipping firmly.

5.The screen is connected with the box body by built-in automatic locking set.It is conveniently to check and maintenace