Advanced self-locking system device, can be locked at any position, anywhere, pull the control free, gorgeous style of a fashion show. 
 Optional screen material: white plastic (to clean the screen surface, fire prevention, anti-virus, showed the best visual angle of 50; luminosity send 1.5) 
 Metal screen: Gain: 2.8 professional metal screen, please compare the use of imported plastic fiber BEDDING, imported metal materials, is to achieve three-dimensional projection of polarization stereoscopic film the best screen material, while take-all common image, sharper image performance. 
 Why use professional metal screen cinema? Because the metal screen coated with special materials, gain up to 3.8-4.8 1.8-2.8 gain than the average performance better. High-gain performance of the image will be more on the clean and brightly lit. As the big-screen cinema, together with high brightness machine, you need to meet the theater in high gain multi-angle viewing, more people watch movies while the polarization of light is filtered out because the machine too much, that need high gain metal screen to the performance, the higher the gain, the stronger the reflected light, look more bright. 

 Screen size 4: 3 standard video mode 
 Diagonal (inch) 84 "100" 120 "150" 
 Screen Size (cm) 128 * 171 152 * 203 183 * 244 229 * 305 
 Customized screen specifications 1: 1 dedicated film projector 
 Diagonal (inch) 60 "70" 84 " 
 Screen Size (cm) 150 * 150 180 * 180 213 * 213